git svn dcommit crashed -- how do I resume?

Hi,

I am using git as a frontend to my SVN-Repository. When I tried to "git svn dcommit" several changes from my local git-repository, git crashed (SEGFAULT, AFAIR).

Now I have a working copy (master branch) that points "somewhere in the past" (at least my files are old). I have a git-svn remote branch that points to the same SHA1.

$ git branch -a
   dokument-zusammenfuehren
* master
   git-svn

I cannot dcommit
$ git svn dcommit
Cannot dcommit with a dirty index.  Commit your changes first, or  
stash them with `git stash'.
  at /Users/jens/libexec/git-core/git-svn line 415

And, indeed, the index is dirty.

I am confused (an slightly panicked), because my old commits seem to be "gone", my WC does not contain the most recent files and there seems to be no "backup-branch" with my old HEAD.

Any idea, how I might get my data back and how to 'resume' the dead dcommit? Google did not turn up anything usefull, unfortunally.

BTW: I am currently using git version 1.6.0.rc0.24.gf45e0.dirty.

Jens