Coroutines Bug? Unity 4.5

So the situation is i have two monobehaviours(object1 and object2) object1 is running coroutine that waits for coroutine running on object2 and the problem is that when i call object2.StopAllCoroutine() object2 coroutine stops, but coroutine on object 1 does not resume

Example:

     public class RootObject: MonoBehaviour
         {
             private CoroutineHost coroutineHost;
             public void Start()
             {
                 var go = new GameObject();
                 coroutineHost = go.AddComponent<CoroutineHost>();
                 
                 
                 this.StartCoroutine(GamePlayRoutine());
                 this.StartCoroutine(StopAllCoroutinesRoutine());
             }
     
             public IContained<IGameplay> gameplay
             {
                 get;
                 set;
             }
     
             private IEnumerator GamePlayRoutine()
             {
                 yield return coroutineHost.StartCoroutine(gameplay.contained.Run());
                 Debug.Log("!!!!");
                 gameplay.Dispose();
             }
     
             private IEnumerator StopAllCoroutinesRoutine()
             {
                 yield return new WaitForSeconds(1.0f);
                 Debug.Log("Killing Coroutines");
                 coroutineHost.StopAllCoroutines();
             }
         }

In this example only Killing Coroutines is being printed, but never "!!!!"