$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-db.git /var/lib/mock/f38-build-side-42-init-devel-635774-26382/root/chroot_tmpdir/scmroot/golang-modernc-db
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-635774-26382/root/chroot_tmpdir/scmroot/golang-modernc-db'...
$ git fetch origin 71bb3f0d1d055b7a3d86b6e3d58fb179d756868a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-db
 * [new ref]         71bb3f0d1d055b7a3d86b6e3d58fb179d756868a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71bb3f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild