$ git clone -n https://src.fedoraproject.org/rpms/python-patiencediff.git /var/lib/mock/f41-build-812755-148424/root/chroot_tmpdir/scmroot/python-patiencediff
Cloning into '/var/lib/mock/f41-build-812755-148424/root/chroot_tmpdir/scmroot/python-patiencediff'...
$ git fetch origin 13345e494688eec20044593494b6d91968b6a8e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-patiencediff
 * [new ref]         13345e494688eec20044593494b6d91968b6a8e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13345e4 Update to 0.2.15