Comment 14 for bug 280480

Ok, drifting into the area of speculation here: I seem to remember reading somewhere that there's a package (or even just a util) that deals with the naming of these base folders for internationalisation reasons (if you login with a new language, it'll dynamically rename the folders to account for this change). Could this perhaps be affecting the issue at all, as it's another base-folder specific manipulation tool. If not, no worries, it was just speculation, though you seem to have identified exactly where the issue is.