Fix #4969: Incorrect snapshot is displayed on emtpy tab after followi… (#5761)
Fix #4969: Incorrect snapshot is displayed on emtpy tab after followi… (#5761)

* Fix #4969: Incorrect snapshot is displayed on emtpy tab after following STR

* Update TabTrayController.swift

StYaphet/firefox-ios,StYaphet/firefox-ios,mkaply/firefox-ios,AaronMT/firefox-ios,AaronMT/firefox-ios,flodolo/firefox-ios,StYaphet/firefox-ios,garvankeeley/firefox-ios,flodolo/firefox-ios,Acidburn0zzz/firefox-ios,mozilla-mobile/firefox-ios,Acidburn0zzz/firefox-ios,garvankeeley/firefox-ios,st3fan/firefox-ios,StYaphet/firefox-ios,st3fan/firefox-ios,flodolo/firefox-ios,flodolo/firefox-ios,mozilla-mobile/firefox-ios,StYaphet/firefox-ios,mkaply/firefox-ios,StYaphet/firefox-ios,st3fan/firefox-ios,garvankeeley/firefox-ios,Acidburn0zzz/firefox-ios,garvankeeley/firefox-ios,mkaply/firefox-ios,mkaply/firefox-ios,garvankeeley/firefox-ios,AaronMT/firefox-ios,st3fan/firefox-ios,mozilla-mobile/firefox-ios,Acidburn0zzz/firefox-ios,Acidburn0zzz/firefox-ios,mozilla-mobile/firefox-ios,mozilla-mobile/firefox-ios,garvankeeley/firefox-ios,Acidburn0zzz/firefox-ios,Acidburn0zzz/firefox-ios,Acidburn0zzz/firefox-ios,StYaphet/firefox-ios,mkaply/firefox-ios,mozilla-mobile/firefox-ios,st3fan/firefox-ios,flodolo/firefox-ios,AaronMT/firefox-ios,mkaply/firefox-ios,mozilla-mobile/firefox-ios,mkaply/firefox-ios,AaronMT/firefox-ios,st3fan/firefox-ios,garvankeeley/firefox-ios,st3fan/firefox-ios,StYaphet/firefox-ios,AaronMT/firefox-ios,flodolo/firefox-ios,AaronMT/firefox-ios,st3fan/firefox-ios,flodolo/firefox-ios