public void invalidateActionsFor(@NotNull DocumentReference ref) {
    for (ClientState state : getAllClientStates()) {
      ApplicationManager.getApplication().assertWriteIntentLockAcquired();
      state.myMerger.invalidateActionsFor(ref);
      if (state.myCurrentMerger != null) state.myCurrentMerger.invalidateActionsFor(ref);
      state.myUndoStacksHolder.invalidateActionsFor(ref);
      state.myRedoStacksHolder.invalidateActionsFor(ref);
    }
  }
public void invalidateActionsFor(@NotNull DocumentReference ref)