bypass activity task generation if paused

Author: gow

service/history/api/respondworkflowtaskcompleted/workflow_task_completed_handler.go

@@ -505,10 +505,12 @@ func (handler *workflowTaskCompletedHandler) handleCommandScheduleActivity(
 	eagerStartActivity := attr.RequestEagerExecution && handler.config.EnableActivityEagerExecution(namespace) &&
 		(!versioningUsed || attr.UseWorkflowBuildId)
 
+	// we bypass activity task generation if either eagerStartActivity is true or the workflow is paused.
+	bypassTaskGeneration := eagerStartActivity || (handler.mutableState.GetExecutionState().Status == enumspb.WORKFLOW_EXECUTION_STATUS_PAUSED)
 	event, _, err := handler.mutableState.AddActivityTaskScheduledEvent(
 		handler.workflowTaskCompletedID,
 		attr,
-		eagerStartActivity,
+		bypassTaskGeneration,
 	)
 	if err != nil {
 		return nil, nil, handler.failWorkflowTaskOnInvalidArgument(enumspb.WORKFLOW_TASK_FAILED_CAUSE_SCHEDULE_ACTIVITY_DUPLICATE_ID, err)