I tried updating from RC1 to RC2 today and noticed that the sitemap was no longer allowing me to look into namespaces -- clicking on the namespace names would make the little arrow rotate, but no subpages or sub-namespaces would appear. This may or may not have to do with the fact that I also ran bin/indexer.php -c in order to clear the index (as suggested here http://www.dokuwiki.org/cli#indexerphp
), because doku.php?do=check complained that my search index was corrupted. I immediately reverted to RC1 and my sitemap is working fine again.
Anybody else having this issue?