repo group: fix logging of rename/move After renaming a group, it would iterate over all the contained groups and repos and update their full path while logging the update from the/old/path to the the/new/path. Doing that, it would also visit the already renamed top level group, but since the full path of that one already had been updated, it would log it as renaming from the/new/path to the/new/path. Fixed by logging when renaming in the first place, and skipping the top level repo group while iterating. To avoid redundant logging, only log (and rename) if the name or parent actually change. Based on a patch by toras9000.