- 
    Bug 
- 
    Resolution: Won't Do
- 
    P5: Not important 
- 
    None
- 
    5.15.0
- 
    None
The attached testcases always prints this warning:
> qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 703, resource id: 18344060, major code: 40 (TranslateCoords), minor code: 0
when the dialog is closed.