Undesired turning-off of line wrapping

PSPad autonomously turns off line wrapping. Steps to reproduce:

1. Turn on line wrapping (Ctrl+W).
2. Go to Settings -> Program Settings -> Editor (part 1).
3. Change any setting, e.g. 'Scroll past EOF and EOL'.
4. Press the 'Apply' button.

As a result, line wrapping will be turned off. In my opinion, this is a bug. The line wrapping setting should not be affected by another setting being changed.