git-svn rebase screwing up commit messages

Hello,
git version 1.5.2.3 over here, I've googled and searched in the ML  
archives but did not find this:  when I git-svn rebase, my commits in  
Git (that are temporarily removed and then re-applied) get their  
commit message flattened on a single line (needless to say this is  
utterly annoying :D).

Is this a bug or something?

Thanks.

-- 
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory