xcode crash when call [self.collectionView deleteItemsAtIndexPaths:@[[NSIndexPath indexPathForItem:count inSection:0]]];

[tigerzhang08]

error：*** Assertion failure in -[UICollectionView _endItemAnimationsWithInvalidationContext:tentativelyForReordering:], /SourceCache/UIKit_Sim/UIKit-3347.44/UICollectionView.m:4072