git svn can't authenticate on svn:// repository

[NK]

Tried to switch from subversion client to git and found myself unable to authenticate on server (svn:// scheme with username/password authentication).

git svn says "Authorization failed: Cannot negotiate authentication mechanism at /lib/Git/SVN.pm line 148"

This issue exists on several versions of msysgit, including latest 1.8.0-preview20121022 and 1.8.1-preview20130110.

Cygwin's version of git can fetch from this. 

Found that link which looks like same problem, although I don't know if server encrypts transfer with SASL.

[NK]

I've checked with local cygwin's svnserve and now I'm sure that git svn can't acccess svnserve with SASL (accessing via svn://localhost/).

If I configure svnserve not to use sasl and require authentication via passwd file, git svn works fine.