Decor > Round Corners fails to work on layer masks
Steps to reproduce bug:
- Right click on an image and select "Layer" -> "Mask" -> "Add Layer Mask".
- Select "Layer's alpha channel" and click the "Add" button.
- Right click on the same image again and select "Filters" -> "Decor" -> "Round Corners..."
- Uncheck "Add drop-shadow" and click on the "OK" button.
Once done you get a "GIMP Message" -> "Round Corners Message" as attached...!
Edited by Michael Schumacher