It's a bug. These things happen. That's why we generally discourage people from trying to use SVN builds unless they're trying to find bugs. For that matter, the "official" releases are only for preview and testing purposes only, not for actual use.
I compile the sources by myself, actually I found this bug with a mod of ReactOS done "as I want/know/do it" (changed icons, name, added/removed irrelevant functionality, etc.). Then I saw the official builds and this bug turned out not to be created by me.