$ git clone -n https://src.fedoraproject.org/rpms/rssguard.git /var/lib/mock/f38-build-side-42-init-devel-898278-28579/root/chroot_tmpdir/scmroot/rssguard
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-898278-28579/root/chroot_tmpdir/scmroot/rssguard'...
$ git fetch origin 05409c94851171ca98f41dd928b2ff07f48086d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rssguard
 * [new ref]         05409c94851171ca98f41dd928b2ff07f48086d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05409c9 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild