Save As - name without extension error

1. open any file
2. select "save as" from "Main menu/file"
3. type new file name without extension
4. click save
Expected: file had saved or catch dialog with message "extension needs"
Actual: got dialog with message (I got error in Russian so its my translate) "Saving error: Can't create file with name "$PathToFile/testName.qml*.qmlproject*.qmltypes....""

It's seems that adding file filters instead extensions. Which one extension needs doesn't important, I catch this error with *.h and *.cpp too

I attach screenshot of the dialog, it's in Russian, but i think the general idea is clear