Fixes an issue if the grid delegate was set to the grid
Fixes an issue if the grid delegate was set to the grid

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