Well, talking about the SVN, i comment this fail i found at svn some days ago. Maybe this should go at bugzilla but i found no place for it, and it's so trivial... (less than 10 minutes).
Here it is. At the tags folder svn://svn.wikimedia.org/svnroot/mediawiki/tags there are two folders with the same name. initial (from revision 8115) and Initial (from r1082).
I guess it should simply be merged, as the folders have different subfolders. In any case, they should at least be renamed.
The way it's now blocks checkouts to cas insensitive FS.
Platonides