QFileSystemModel: When changing the root of the model then it loses the named filter information causing things to appear that shouldn't

QFileSystemModel: When changing the root of the model then it loses the named filter information causing things to appear that shouldn't. In the example attached, to reproduce it just click on the top level folder on the left, then traverse some folders and go back to a folder again and you will see that on the right folders and such appear even though it should just show files.