Reported by jteh on 2011-06-22 09:22
Str:

1. Select a message in the Thunderbirde message list using up/down arrow.
2. Press control+space.
3. Expected: NVDA should announce "not selected".
4. Actual: Nothing is announced.

Regression caused by 0301d11 (removal of EVENT_OBJECT_SELECTIONWITHIN). This probably breaks other Mozilla lists/trees/tables as well, but i haven't confirmed that yet.

I guess Mozilla are using selectionWithin to indicate that the selected state of an item has changed. My understanding was that this was fired on the parent, not on children, but Mozilla seem to be using this differently.

Personally, i think we should revert this commit. I realise it makes things faster for Y! Mail in IE, but I think this regression is worse.