select child grouplike when loading parent

This was already the previous behavior, but a misplaced
restoreGrouplikeData was overwriting that effect. With this
commit, the scroll position will still be restored, but the
selected item will be correctly changed to whichever was
opened.

(This arguably means it's no longer necessary to restore the
selected item in save/restoreGrouplikeData at all, but it's
kept there in case a grouplike is ever unloaded through some
means besides opening its child -- actually this is the case
if you reveal an item whos ancestor groups don't fully overlap
with that of the previously open group.)

0 files changed, 0 insertions, 0 deletions