FIRE-4454: Re-apply performance fix in LLMenuParcelObserver::changed()
FIRE-4454: Re-apply performance fix in LLMenuParcelObserver::changed()

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm