unbroke selection handling for single selection modes
unbroke selection handling for single selection modes

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