QColumnView crashes when editing index from program

When trying to create new folder in QDirModel and enter edit mode of that item, program crashes with this ASSERT: "first->d_func()>focus_next>d_func()->focus_prev == first" in file kernel/qwidget.cpp, line 6427
When running program in release mode, it will crash in ~QWidget()
It test example - select any folder, rightclick on it -> press New Folder. Crash in debug. Crash after closing in release.
Other item views works as expected - folder is created and renaming started