@Override
    public void detach() {
        super.detach();
        modules.getFilesModule().unbindFile(location.getFileId(), callback, false);
    }
@ Override public void detach ( ) { super . detach ( ) ; modules . getFilesModule ( ) . unbindFile ( location . getFileId ( ) , callback , false ) ; }
Detach FileVM from Messenger.
Don't use object after detaching.