$ git clone -n https://src.fedoraproject.org/rpms/python-drgn.git /var/lib/mock/f41-build-812543-148420/root/chroot_tmpdir/scmroot/python-drgn
Cloning into '/var/lib/mock/f41-build-812543-148420/root/chroot_tmpdir/scmroot/python-drgn'...
$ git fetch origin a3a20fd7dc071d0122b281800b628cc4f71cf007:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-drgn
 * [new ref]         a3a20fd7dc071d0122b281800b628cc4f71cf007 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3a20fd Update to 0.0.27