$ git clone -n https://src.fedoraproject.org/rpms/viking.git /var/lib/mock/f40-build-2250096-54033/root/chroot_tmpdir/scmroot/viking
Cloning into '/var/lib/mock/f40-build-2250096-54033/root/chroot_tmpdir/scmroot/viking'...
$ git fetch origin b46955c5b55744030ed88300b1c2c2580c719a81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/viking
 * [new ref]         b46955c5b55744030ed88300b1c2c2580c719a81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b46955c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild