I have tried the same sums file that is attached to your account, and I cannot reproduce this. Please make sure that the sums file installed on your server is current (RC 3), as this was actually a known issue with the RC 2 sums.
I see your last checkout of the source code was on September 30. Check the modified date on library/vw/FileSums.php on your site. If it's before September 28 (the date of the last sums update), then you probably still have the RC 2 sums file uploaded and need to replace it. If that file is stale, then you probably also still have RC 2 versions of a lot of the other files.