$ git clone -n https://src.fedoraproject.org/rpms/python-markdown2.git /var/lib/mock/f45-build-31497-652/root/chroot_tmpdir/scmroot/python-markdown2
Cloning into '/var/lib/mock/f45-build-31497-652/root/chroot_tmpdir/scmroot/python-markdown2'...
$ git fetch origin d4c8c9b5f59e63568396c9e549b6cc65f572f5e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-markdown2
 * [new ref]         d4c8c9b5f59e63568396c9e549b6cc65f572f5e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4c8c9b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild