Clear packet on stop_match to prevent stale data

Author: VirxEC

rlbot/managers/match.py

@@ -234,6 +234,7 @@ def disconnect(self):
         self.rlbot_interface.disconnect()
 
     def stop_match(self):
+        self.packet = None
         self.rlbot_interface.stop_match()
 
     def set_game_state(

rlbot/version.py

@@ -1 +1 @@
-__version__ = "2.0.0-beta.53"
+__version__ = "2.0.0-beta.54"