When I try to edit (select then delete) specific text jEdit freezes.
I have met this behavior before in other files so it doesn't depend on specific file (parser) type.
Step to reproduce:
1. Open `test.properties` file
2. Select any area by keys or mouse
3. Press 'Detete on a keyboard.
4. jEdit freezes (doesn't respond to any action)
I tested this case with mode _property_ and _text_.