$ git clone -n https://src.fedoraproject.org/rpms/python-cssmin.git /var/lib/mock/f41-build-781119-13559/root/chroot_tmpdir/scmroot/python-cssmin
Cloning into '/var/lib/mock/f41-build-781119-13559/root/chroot_tmpdir/scmroot/python-cssmin'...
$ git fetch origin 0d5519f8b034b123f4220d851b6b5602eed2697f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cssmin
 * [new ref]         0d5519f8b034b123f4220d851b6b5602eed2697f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d5519f Eliminate use of obsolete %patchN syntax (#2283636)