$ git clone -n https://src.fedoraproject.org/rpms/meg.git /var/lib/mock/f38-build-side-42-init-devel-858654-28427/root/chroot_tmpdir/scmroot/meg
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-858654-28427/root/chroot_tmpdir/scmroot/meg'...
$ git fetch origin 6cbb30bf938688961a46c6983761b60dcad03564:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/meg
 * [new ref]         6cbb30bf938688961a46c6983761b60dcad03564 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cbb30b Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild