I don't think the bug as being invalid (reopening it).
From a developer experience point of view, how would you so direct such children so that they can be filtered in a SortFilterModel, especially when coming from u1db or other where they are are Variant children?
I think there is something to do. The invalid state is bogus, it can be "won't fix", but there is a clearly something we can't filter on. Maybe the least would be a note in the documentation and examples on how to do this directly in, for instance, u1db (once the bug is fixed there).
I don't think the bug as being invalid (reopening it).
From a developer experience point of view, how would you so direct such children so that they can be filtered in a SortFilterModel, especially when coming from u1db or other where they are are Variant children?
I think there is something to do. The invalid state is bogus, it can be "won't fix", but there is a clearly something we can't filter on. Maybe the least would be a note in the documentation and examples on how to do this directly in, for instance, u1db (once the bug is fixed there).