The bug remains, an easier shorter path to test is:
1. Open Pinta.
2. Pinta opens with a default named unsaved image.
3. Close the image with Cmd+W. Pinta shows no white canvas and removes the unsaved image title.
4. Open the "Window" menu and there it is, the unsaved image with a checkbox, where none should appear.
The bug remains, an easier shorter path to test is:
1. Open Pinta.
2. Pinta opens with a default named unsaved image.
3. Close the image with Cmd+W. Pinta shows no white canvas and removes the unsaved image title.
4. Open the "Window" menu and there it is, the unsaved image with a checkbox, where none should appear.