disabled default shield creation on reset

examples/shields/rl/rllibutils.py

@@ -82,11 +82,11 @@ class OneHotShieldingWrapper(gym.core.ObservationWrapper):
 
 
 class MiniGridShieldingWrapper(gym.core.Wrapper):
-    def __init__(self, 
-                 env, 
+    def __init__(self,
+                 env,
                 shield_creator : MiniGridShieldHandler,
                 shield_query_creator,
-                create_shield_at_reset=True,    
+                create_shield_at_reset=False,
                 mask_actions=True):
         super(MiniGridShieldingWrapper, self).__init__(env)
         self.max_available_actions = env.action_space.n