Add missing fields to WorkflowHandle

Author: dandavison

temporalio/client.py

@@ -998,6 +998,8 @@ def on_start(
                     self,
                     start_workflow_operation._start_workflow_input.id,
                     first_execution_run_id=start_response.run_id,
+                    result_run_id=start_response.run_id,
+                    result_type=result_type,
                 )
             )
 
@@ -2502,13 +2504,6 @@ def __init__(
             rpc_metadata=rpc_metadata,
             rpc_timeout=rpc_timeout,
         )
-
-        # TODO: any of these needed here?
-        # self._run_id = None
-        # self._result_run_id = None
-        # self._result_type = None
-        # self.__temporal_eagerly_started = False
-
         self._workflow_handle: Future[WorkflowHandle[SelfType, ReturnType]] = Future()
 
     async def workflow_handle(self) -> WorkflowHandle[SelfType, ReturnType]: