Nicer resetting of _loop_kicking_operator_running

blender_cloud/async_loop.py

@@ -94,7 +94,6 @@ def erase_async_loop():
 
     loop = asyncio.get_event_loop()
     loop.stop()
-    _loop_kicking_operator_running = False
 
 
 class AsyncLoopModalOperator(bpy.types.Operator):
@@ -104,6 +103,14 @@ class AsyncLoopModalOperator(bpy.types.Operator):
     timer = None
     log = logging.getLogger(__name__ + '.AsyncLoopModalOperator')
 
+    def __del__(self):
+        global _loop_kicking_operator_running
+
+        # This can be required when the operator is running while Blender
+        # (re)loads a file. The operator then doesn't get the chance to
+        # finish the async tasks, hence stop_after_this_kick is never True.
+        _loop_kicking_operator_running = False
+
     def execute(self, context):
         return self.invoke(context, None)