$ git clone -n https://src.fedoraproject.org/rpms/lxqt-themes.git /var/lib/mock/f41-build-side-1-2828563-33537/root/chroot_tmpdir/scmroot/lxqt-themes
Cloning into '/var/lib/mock/f41-build-side-1-2828563-33537/root/chroot_tmpdir/scmroot/lxqt-themes'...
$ git fetch origin aee12f2e05a65ee3ce6e24dd8872ec7700ba73b0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxqt-themes
 * [new ref]         aee12f2e05a65ee3ce6e24dd8872ec7700ba73b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aee12f2 2.0.0