fix: revert the cause of workforce reset runtime error bug (#3467)

Co-authored-by: Wendong-Fan <[email protected]>

Author: a7m-1st

camel/societies/workforce/workforce.py

@@ -2188,7 +2188,11 @@ async def handle_decompose_append_task(
             )
             return [task]
 
-        self.reset()
+        if reset and self._state != WorkforceState.RUNNING:
+            self.reset()
+            logger.info("Workforce reset before handling task.")
+
+        # Focus on the new task
         self._task = task
         task.state = TaskState.FAILED