Refresh the execution during resume_execution to avoid using a detached SqlAlchemy instance

The idea here is to avoid a possible threading issue by re-retrieving the execution during resume_execution so as to avoid changing state and then trying to save a detached instance.

shared/workspaces/workspaces/capability/services/execution_manager.py

@@ -87,6 +87,8 @@ class ExecutionManager(ExecutionManagerIF):
         :param execution:  the execution whose time has come
         """
         # Mark this execution as no longer queued
+        # load the execution afresh
+        execution = self.capability_info.lookup_execution(execution.id)
         execution.queue_state = QueueState.Running.name
         self.capability_info.save_execution(execution)
         subject = execution.__json__()