Duplicated image shows NULL in warning when closing it
GIMP version: 2.10.18
Operating System: Windows
Package: Installer from gimp.org
Description of the bug
When you use the image duplication (Ctrl + D by default) and immediately try to close the image, you get this warning
Notice the NULL.
(IMO the warning should not appear at all until you actually edit the image)
Reproduction steps
- Edit any image
- Ctrl + D
- Ctrl + W