$ git clone -n https://src.fedoraproject.org/rpms/sisu-mojos.git /var/lib/mock/f38-build-side-42-init-devel-802507-28144/root/chroot_tmpdir/scmroot/sisu-mojos
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-802507-28144/root/chroot_tmpdir/scmroot/sisu-mojos'...
$ git fetch origin 8e791b4661b689f412227905e2c684fe9037fe62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sisu-mojos
 * [new ref]         8e791b4661b689f412227905e2c684fe9037fe62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e791b4 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild