Merge pull request #490 from lf-lang/fix-concurrency

Fix Unintended Action Override

python/lib/pythontarget.c

@@ -542,7 +542,8 @@ PyObject* convert_C_action_to_py(void* action) {
   }
 
   // Actions in Python always use token type
-  ((generic_action_capsule_struct*)cap)->value = trigger->tmplt.token->value;
+  if (((generic_action_instance_struct*)action)->token != NULL)
+    ((generic_action_capsule_struct*)cap)->value = ((generic_action_instance_struct*)action)->token->value;
 
   return cap;
 }