Problem with displaying some screens
Sometimes there are problems with main window refreshing.
First example steps:
1. open darkroom
2. click darktable info (open window)
3. select any text, and open right-click menu
4. copy text to clipboard
5. at right bottom-side there is duplicated fragment of window with thumbs.
Second example steps:
1. open in DarkTable any filmroll, and open any photo
2. open in DT any file from external file manager (ex. Digikam)
3. at cursor duplicating file opened in main window.