Wikis are unsorted in the document tree e.g. when copying a page

If the document tree includes wikis, these wikis are not sorted by their (user visible) "Pretty Name", but by the database name (I think).

While this is not a problem in the screenshot ( sorted as [ "subwiki1", "xwiki" ] instead of [ "Home, "Sub Wiki 1" ] ) users start feeling complainerish if they need to look through 20+ subwikis. (Maybe having the current wiki open by default might help either with the issue, as in most cases one wants to move the page within the same wiki, I guess.)