Prevent from returning to Arabic when Persian message doesn't exists

As a Persian I need to say, Arabic and Persian just have the writing system in common and even they belong to different lingual groups.
fa belongs to Indio-Europian and Arabic is Semetic. Returning to Arabic when fa message doesn't exists make Persian people angry
Becaue they don't like to be mistaken as Arabs and this retuning has no advantage for Persian, Persians know English better than Arabic

Change-Id: I974ee52e924a57d8ef38a66d997b03949adfcac6
Merge "Prevent from returning to Arabic when Persian message doesn't exists"