1.91.3: Possible Crash with Paint 1.03 plugin

[ckit]

Steps:
- Open XnView in Browser mode
- Import Clipboard containing full 1280x1024 screenshot
- Filter menu -> Paint (1.03)
- Set Watermark to 25% op.
- Choose a picture that is bigger than 1280x1024

Original 1280x1024 with Watermark...
- Select an area say 800x600 and resize some of the sides
- Crop the area -> Choose "Save As" and Crash!

I can't always always re-produce though but I'm working on it.