Add checks to bail out early in layout transition
Add checks to bail out early in layout transition

lappp9/AsyncDisplayKit,maicki/AsyncDisplayKit,maicki/AsyncDisplayKit,rmls/AsyncDisplayKit,flovouin/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,harryworld/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,lappp9/AsyncDisplayKit,harryworld/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,romyilano/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,flovouin/AsyncDisplayKit,JetZou/AsyncDisplayKit,romyilano/AsyncDisplayKit,flovouin/AsyncDisplayKit,JetZou/AsyncDisplayKit,lappp9/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,flovouin/AsyncDisplayKit,rmls/AsyncDisplayKit,lappp9/AsyncDisplayKit,harryworld/AsyncDisplayKit,JetZou/AsyncDisplayKit,romyilano/AsyncDisplayKit,flovouin/AsyncDisplayKit,rmls/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,aaronschubert0/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,rmls/AsyncDisplayKit,JetZou/AsyncDisplayKit,rmls/AsyncDisplayKit,maicki/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,JetZou/AsyncDisplayKit,harryworld/AsyncDisplayKit,romyilano/AsyncDisplayKit,chrisdanford/AsyncDisplayKit,harryworld/AsyncDisplayKit,maicki/AsyncDisplayKit,tomizimobile/AsyncDisplayKit,maicki/AsyncDisplayKit