$ git clone -n https://src.fedoraproject.org/rpms/flamethrower.git /var/lib/mock/f38-build-side-42-init-devel-884182-28488/root/chroot_tmpdir/scmroot/flamethrower
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-884182-28488/root/chroot_tmpdir/scmroot/flamethrower'...
$ git fetch origin be8ce3a0693c910d2180097fafc10cae94159efa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flamethrower
 * [new ref]         be8ce3a0693c910d2180097fafc10cae94159efa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be8ce3a Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild