git and svn

Hi Martin,

Sorry for hitting this point again, but lastmidnight generator is stuck:

http://www7.openxpki.org/lastmidnight/index.html

For use with lastmidnight generator
I have a working copy of a "git snapshot" which was created with a command:

git clone git://openxpki.git.sourceforge.net/gitroot/openxpki/openxpki

To update this snapshot nightly from a SF repository I used to issue
command:

git svn rebase

which now says:

Unable to determine upstream SVN information from working tree history

What is a methodical way to update my git snapshot?

All the best, Sergei

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