JakeWharton/ActionBarSherlock — pull request #644 by Vandalko (2012-10-02 13:14:42+00:00)
Title: Don't call onOptionsItemSelected for fragments in backstack.

In some rare cases(with FragmentTransaction.replace() method) fragment could be in backstack but mHidden flag is still false. I think that this is support library bug but anyway there is easy way to fix that.