Using indexOfObjectIdenticalTo rather than indexOfObject.
Using indexOfObjectIdenticalTo rather than indexOfObject.

godLoveLucifer/PSTCollectionView,ba01ei/PSTImprovedCollectionView,zace-yuan/PSTCollectionView,Kevin775263419/PSTCollectionView,CorzFree/PSTCollectionView,Anish-kumar-dev/PSTCollectionView,niuxinghua/PSTCollectionView,Amnysia/PSTCollectionView,StephaneDelcroix/PSTCollectionView,jianwoo/PSTCollectionView,StephaneDelcroix/PSTCollectionView,steipete/PSTCollectionView,thevuuranusls/PSTCollectionView,zjh171/PSTCollectionView