High CPU usage / crashing when deleting text in edit mode
I'd observed this a couple of times before but couldn't reproduce it until now:
Create an item with this text (paste as single item, might want to lose the quotes):
"For up/down arrows:
None: Focus Next / Previous item
Shift: Select items
Ctrl: Scroll view up / down
Ctrl + Shift: Focus Next / Previous item + Scroll
Alt: Move items Up / Down
Shift + Alt: Focus Next / Previous sibling
Shift + Alt + Ctrl: Focus Next / Previous sibling, add sibling if at end
None: Focus Next / Previous item
Shift: Select items
Ctrl: Scroll view up / down
Ctrl + Shift: Focus Next / Previous item + Scroll
Alt: Move items Up / Down
Shift + Alt: Focus Next / Previous sibling
Shift + Alt + Ctrl: Focus Next / Previous sibling, add sibling if at end