$ git clone -n https://src.fedoraproject.org/rpms/thunar-volman.git /var/lib/mock/f41-build-side-1-2670626-29060/root/chroot_tmpdir/scmroot/thunar-volman
Cloning into '/var/lib/mock/f41-build-side-1-2670626-29060/root/chroot_tmpdir/scmroot/thunar-volman'...
$ git fetch origin 6f1b9f351ab30c3baabc9c711b879020dd3e1412:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/thunar-volman
 * [new ref]         6f1b9f351ab30c3baabc9c711b879020dd3e1412 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f1b9f3 convert GPLv2+ license to SPDX