CollectionView doesn't clear sometimes

[soysaucelab]

CollectionView doesn't clear sometimes

[lkzhao]

@Banck Thanks for reporting. It shouldn't leave the cells on screen even if there are identifier conflicts. I will push a patch to fix this issue in next week. Please leave this open for now.

[lkzhao]

This is weird, can you provide more code. What presenter are you using. what kind of data source are you using?

[Banck]

@lkzhao Seems, I resolved this issue.
I have datasource:

        dataSource = ArrayDataSource(data: presenter!.matches, identifierMapper: { (index, data) -> String in
            return "\(data.id ?? 0)"
        })

and when I want to create empty cell my data.id nil. So all cells had identifier == 0. And then when I call dataSource.data.removeAll() some cells still on the screen.

Now I have dataSource:

dataSource = ArrayDataSource(data: presenter!.matches, identifierMapper: { (index, data) -> String in
            return "\(data.id ?? index)"
        })

and all is fine.