Hello. Please help me to solve the issue: NSDiffableDataSourceSnapshot - "deleteItems" does not work for cells that are collapsed. Also, func sectionIdentifier(containingItem identifier: ItemIdentifierType) - SectionIdentifierType? does not return "SectionIdentifierType" if we pass in a cell that has been collapsed. Please tell me, if I want to delete a cell in a section that is currently collapsed, how can I do this? Thanks.