git-svn producing "invalid author/committer line"

	Hi,

We have an SVN repository with a number of projects in its /trunk. Different people have r/w-access to different subsets of these projects.

When I "git-svn fetch" this repo's trunk there will be some revisions that I don't have access to. In SVN log they show up as empty change-sets with unspecified author. In the resulting git repo, git-fsck says "error in commit 92cf6ec3a55fbbfbf5aea7f0937e4b49470b9112: invalid author/committer line", and - as a consequence I guess - git-gc aborts.

$ git show 92cf6
commit 92cf6ec3a55fbbfbf5aea7f0937e4b49470b9112
Author: (no author) <(no author)@xxxx>
Date:   Thu Jan 1 00:00:00 1970 +0000

I tried to run "git filter-branch --prune-empty -- --all", to simply discard these empty commits, but the problem remains.

After some googling I found a possible work-around, using the --authors-file option of git-svn to map the "no author" into something less invalid, but I suppose that would require the list to contain every other committer as well?

Could I somehow make "git-svn fetch" skip these empty commits, corresponding to revisions that the SVN user doesn't have access to?

Cheers,

	Esben