$ git clone -n https://src.fedoraproject.org/rpms/kf5-grantleetheme.git /var/lib/mock/f40-build-786863-134632/root/chroot_tmpdir/scmroot/kf5-grantleetheme
Cloning into '/var/lib/mock/f40-build-786863-134632/root/chroot_tmpdir/scmroot/kf5-grantleetheme'...
$ git fetch origin 92dab3940f37a0da40297a69fe3607dd52d247d9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-grantleetheme
 * [new ref]         92dab3940f37a0da40297a69fe3607dd52d247d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 92dab39 23.08.5