git-svn dcommit always uses my own name

Hi all,

Here's the workflow I'm using:

- I check out the central svn repository into a shared git repo using git-svn

- Each team member clones the shared repo, works in it, etc.

- I integrate their changes using git-pull, merge, rebase, etc,
forming a linearized history suitable for git-svn

- I run git-svn dcommit.

However, when I do this, all the commits to svn end up having *my* userid attached, rather than the userid of the git user. If I do "git log" before "git-svn dcommit", it shows all the right authors, but this information is lost when I dcommit.

Is there a way to not lose this information?

Thanks,

Avery