Abort reauth flows on config entry reload (#140931)

* Abort reauth flows on config entry reload

* Don't cancel reauth when reload is triggered by a reauth flow

* Revert "Don't cancel reauth when reload is triggered by a reauth flow"

This reverts commit f37c75621e.

* Don't fail in FlowManager._async_handle_step when the flow was aborted

* Update tplink config flow

* Add tests

* Don't allow create_entry from an aborted flow

* Add comment

* Adjust after merge with dev

homeassistant/data_entry_flow.py

@@ -494,8 +494,11 @@ class FlowManager(abc.ABC, Generic[_FlowContextT, _FlowResultT, _HandlerT]):
             )
 
         if flow.flow_id not in self._progress:
-            # The flow was removed during the step
-            raise UnknownFlow
+            # The flow was removed during the step, raise UnknownFlow
+            # unless the result is an abort
+            if result["type"] != FlowResultType.ABORT:
+                raise UnknownFlow
+            return result
 
         # Setup the flow handler's preview if needed
         if result.get("preview") is not None:
@@ -547,7 +550,7 @@ class FlowManager(abc.ABC, Generic[_FlowContextT, _FlowResultT, _HandlerT]):
             flow.cur_step = result
             return result
 
-        # Abort and Success results both finish the flow
+        # Abort and Success results both finish the flow.
         self._async_remove_flow_progress(flow.flow_id)
 
         return result