shimatta_kenkyusho/parts/models.py

@@ -376,6 +376,12 @@ def auto_apply_template_structure(sender, instance, created, **kwargs):
     If there are nested sub-storages these will be added when the sub-storages
     are created automatically.
     """
+
+    # Skip recursion if the model is saved 'raw' e.g. when imported
+    if 'raw' in kwargs:
+        if kwargs['raw']:
+            return
+
     if created:
         if instance.template:
             for sub_storage in instance.template.storage_set.all():