Trailing slash disappears from WordPress address

Hi,

my Blog is located at https://moritz.faui2k3.org/blog/ (it’s a sub directory, the trailing slash has to be there).
However when I change the “WordPress address (URI):” or the “Blog address (URI):” on the “general Options” page, it removes the trailing slash.

This is bad for 2 reasons:
1) Every Link to the address without the trailing slash causes a redirect
2) In the generated RSS feed there is a link to the address without trailing slash. Therefore I can’t submit the RSS feed to the Google Sitemaps program.
Since the Feed is located at /blog/feed, I have to add a site /blog/, and then there is a link in the feed to /blog which is not a sub page of /blog/ and therefore google reports an error.

I hope that was not too confusing.

In short: What can I do to prevent WordPress 2.0.5 from stripping the trailing slash from my blog’s URI?