diff --git a/include/internal/catch_test_spec_parser.cpp b/include/internal/catch_test_spec_parser.cpp
index dad15c01..40fcdcc3 100644
--- a/include/internal/catch_test_spec_parser.cpp
+++ b/include/internal/catch_test_spec_parser.cpp
@@ -168,6 +168,7 @@ namespace Catch {
          m_pos = m_arg.size();
          m_substring.clear();
          m_patternName.clear();
+         m_realPatternPos = 0;
          return false;
       }
       endMode();
@@ -186,6 +187,7 @@ namespace Catch {
         }
 
         m_patternName.clear();
+        m_realPatternPos = 0;
 
         return token;
     }
diff --git a/projects/SelfTest/Baselines/compact.sw.approved.txt b/projects/SelfTest/Baselines/compact.sw.approved.txt
index eef23b5a..10fcad66 100644
--- a/projects/SelfTest/Baselines/compact.sw.approved.txt
+++ b/projects/SelfTest/Baselines/compact.sw.approved.txt
@@ -23,6 +23,9 @@ This would not be caught previously
 Nor would this
 Tricky.tests.cpp:<line number>: failed: explicitly with 1 message: '1514'
 Compilation.tests.cpp:<line number>: passed: std::is_same<TypeList<int>, TypeList<int>>::value for: true
+CmdLine.tests.cpp:<line number>: passed: spec.matches(fakeTestCase("spec . char")) for: true
+CmdLine.tests.cpp:<line number>: passed: spec.matches(fakeTestCase("spec , char")) for: true
+CmdLine.tests.cpp:<line number>: passed: !(spec.matches(fakeTestCase(R"(spec \, char)"))) for: !false
 Exception.tests.cpp:<line number>: failed: unexpected exception with message: 'answer := 42' with 1 message: 'expected exception'
 Exception.tests.cpp:<line number>: failed: unexpected exception with message: 'answer := 42'; expression was: thisThrows() with 1 message: 'expected exception'
 Exception.tests.cpp:<line number>: passed: thisThrows() with 1 message: 'answer := 42'
diff --git a/projects/SelfTest/Baselines/console.std.approved.txt b/projects/SelfTest/Baselines/console.std.approved.txt
index c0357adb..d3a733d2 100644
--- a/projects/SelfTest/Baselines/console.std.approved.txt
+++ b/projects/SelfTest/Baselines/console.std.approved.txt
@@ -1380,6 +1380,6 @@ due to unexpected exception with message:
   Why would you throw a std::string?
 
 ===============================================================================
-test cases:  307 |  233 passed |  70 failed |  4 failed as expected
-assertions: 1677 | 1525 passed | 131 failed | 21 failed as expected
+test cases:  308 |  234 passed |  70 failed |  4 failed as expected
+assertions: 1680 | 1528 passed | 131 failed | 21 failed as expected
 
diff --git a/projects/SelfTest/Baselines/console.sw.approved.txt b/projects/SelfTest/Baselines/console.sw.approved.txt
index 1b0a8ce2..9a5b7eb3 100644
--- a/projects/SelfTest/Baselines/console.sw.approved.txt
+++ b/projects/SelfTest/Baselines/console.sw.approved.txt
@@ -188,6 +188,27 @@ Compilation.tests.cpp:<line number>: PASSED:
 with expansion:
   true
 
+-------------------------------------------------------------------------------
+#1905 -- test spec parser properly clears internal state between compound tests
+-------------------------------------------------------------------------------
+CmdLine.tests.cpp:<line number>
+...............................................................................
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.matches(fakeTestCase("spec . char")) )
+with expansion:
+  true
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.matches(fakeTestCase("spec , char")) )
+with expansion:
+  true
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  REQUIRE_FALSE( spec.matches(fakeTestCase(R"(spec \, char)")) )
+with expansion:
+  !false
+
 -------------------------------------------------------------------------------
 #748 - captures with unexpected exceptions
   outside assertions
@@ -13427,6 +13448,6 @@ Misc.tests.cpp:<line number>
 Misc.tests.cpp:<line number>: PASSED:
 
 ===============================================================================
-test cases:  307 |  217 passed |  86 failed |  4 failed as expected
-assertions: 1694 | 1525 passed | 148 failed | 21 failed as expected
+test cases:  308 |  218 passed |  86 failed |  4 failed as expected
+assertions: 1697 | 1528 passed | 148 failed | 21 failed as expected
 
diff --git a/projects/SelfTest/Baselines/console.swa4.approved.txt b/projects/SelfTest/Baselines/console.swa4.approved.txt
index 322b8158..e32fd88f 100644
--- a/projects/SelfTest/Baselines/console.swa4.approved.txt
+++ b/projects/SelfTest/Baselines/console.swa4.approved.txt
@@ -188,6 +188,27 @@ Compilation.tests.cpp:<line number>: PASSED:
 with expansion:
   true
 
+-------------------------------------------------------------------------------
+#1905 -- test spec parser properly clears internal state between compound tests
+-------------------------------------------------------------------------------
+CmdLine.tests.cpp:<line number>
+...............................................................................
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.matches(fakeTestCase("spec . char")) )
+with expansion:
+  true
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.matches(fakeTestCase("spec , char")) )
+with expansion:
+  true
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  REQUIRE_FALSE( spec.matches(fakeTestCase(R"(spec \, char)")) )
+with expansion:
+  !false
+
 -------------------------------------------------------------------------------
 #748 - captures with unexpected exceptions
   outside assertions
@@ -368,6 +389,6 @@ Condition.tests.cpp:<line number>: FAILED:
   CHECK( true != true )
 
 ===============================================================================
-test cases: 19 | 14 passed | 3 failed | 2 failed as expected
-assertions: 42 | 35 passed | 4 failed | 3 failed as expected
+test cases: 20 | 15 passed | 3 failed | 2 failed as expected
+assertions: 45 | 38 passed | 4 failed | 3 failed as expected
 
diff --git a/projects/SelfTest/Baselines/junit.sw.approved.txt b/projects/SelfTest/Baselines/junit.sw.approved.txt
index e8f7c09f..8ac1236d 100644
--- a/projects/SelfTest/Baselines/junit.sw.approved.txt
+++ b/projects/SelfTest/Baselines/junit.sw.approved.txt
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <testsuitesloose text artifact
 >
-  <testsuite name="<exe-name>" errors="17" failures="132" tests="1695" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
+  <testsuite name="<exe-name>" errors="17" failures="132" tests="1698" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
     <properties>
       <property name="filters" value="~[!nonportable]~[!benchmark]~[approvals]"/>
       <property name="random-seed" value="1"/>
@@ -30,6 +30,7 @@ Nor would this
       </system-err>
     </testcase>
     <testcase classname="<exe-name>.global" name="#1548" time="{duration}"/>
+    <testcase classname="<exe-name>.global" name="#1905 -- test spec parser properly clears internal state between compound tests" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="#748 - captures with unexpected exceptions/outside assertions" time="{duration}">
       <error type="TEST_CASE">
 FAILED:
diff --git a/projects/SelfTest/Baselines/sonarqube.sw.approved.txt b/projects/SelfTest/Baselines/sonarqube.sw.approved.txt
index 2f11cf5b..72fdd780 100644
--- a/projects/SelfTest/Baselines/sonarqube.sw.approved.txt
+++ b/projects/SelfTest/Baselines/sonarqube.sw.approved.txt
@@ -2,6 +2,7 @@
 <testExecutions version="1"loose text artifact
 >
   <file path="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp">
+    <testCase name="#1905 -- test spec parser properly clears internal state between compound tests" duration="{duration}"/>
     <testCase name="Parse test names and tags/Empty test spec should have no filters" duration="{duration}"/>
     <testCase name="Parse test names and tags/Test spec from empty string should have no filters" duration="{duration}"/>
     <testCase name="Parse test names and tags/Test spec from just a comma should have no filters" duration="{duration}"/>
diff --git a/projects/SelfTest/Baselines/xml.sw.approved.txt b/projects/SelfTest/Baselines/xml.sw.approved.txt
index cc90e0cb..fff44abd 100644
--- a/projects/SelfTest/Baselines/xml.sw.approved.txt
+++ b/projects/SelfTest/Baselines/xml.sw.approved.txt
@@ -196,6 +196,33 @@ Nor would this
       </Expression>
       <OverallResult success="true"/>
     </TestCase>
+    <TestCase name="#1905 -- test spec parser properly clears internal state between compound tests" tags="[command-line][test-spec]" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+      <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+        <Original>
+          spec.matches(fakeTestCase("spec . char"))
+        </Original>
+        <Expanded>
+          true
+        </Expanded>
+      </Expression>
+      <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+        <Original>
+          spec.matches(fakeTestCase("spec , char"))
+        </Original>
+        <Expanded>
+          true
+        </Expanded>
+      </Expression>
+      <Expression success="true" type="REQUIRE_FALSE" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+        <Original>
+          !(spec.matches(fakeTestCase(R"(spec \, char)")))
+        </Original>
+        <Expanded>
+          !false
+        </Expanded>
+      </Expression>
+      <OverallResult success="true"/>
+    </TestCase>
     <TestCase name="#748 - captures with unexpected exceptions" tags="[!hide][!shouldfail][!throws][.][failing]" filename="projects/<exe-name>/UsageTests/Exception.tests.cpp" >
       <Section name="outside assertions" filename="projects/<exe-name>/UsageTests/Exception.tests.cpp" >
         <Info>
@@ -16048,7 +16075,7 @@ loose text artifact
       </Section>
       <OverallResult success="true"/>
     </TestCase>
-    <OverallResults successes="1525" failures="149" expectedFailures="21"/>
+    <OverallResults successes="1528" failures="149" expectedFailures="21"/>
   </Group>
-  <OverallResults successes="1525" failures="148" expectedFailures="21"/>
+  <OverallResults successes="1528" failures="148" expectedFailures="21"/>
 </Catch>
diff --git a/projects/SelfTest/IntrospectiveTests/CmdLine.tests.cpp b/projects/SelfTest/IntrospectiveTests/CmdLine.tests.cpp
index 6e590326..0d8232e0 100644
--- a/projects/SelfTest/IntrospectiveTests/CmdLine.tests.cpp
+++ b/projects/SelfTest/IntrospectiveTests/CmdLine.tests.cpp
@@ -292,6 +292,17 @@ TEST_CASE( "Parse test names and tags", "[command-line][test-spec]" ) {
     }
 }
 
+TEST_CASE("#1905 -- test spec parser properly clears internal state between compound tests", "[command-line][test-spec]") {
+    using Catch::parseTestSpec;
+    using Catch::TestSpec;
+    // We ask for one of 2 different tests and the latter one of them has a , in name that needs escaping
+    TestSpec spec = parseTestSpec(R"("spec . char","spec \, char")");
+
+    REQUIRE(spec.matches(fakeTestCase("spec . char")));
+    REQUIRE(spec.matches(fakeTestCase("spec , char")));
+    REQUIRE_FALSE(spec.matches(fakeTestCase(R"(spec \, char)")));
+}
+
 TEST_CASE( "Process can be configured on command line", "[config][command-line]" ) {
 
 #ifndef CATCH_CONFIG_DISABLE_MATCHERS