$ git clone -n https://src.fedoraproject.org/rpms/erlang-relx.git /var/lib/mock/f38-build-side-42-init-devel-749244-27661/root/chroot_tmpdir/scmroot/erlang-relx
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-749244-27661/root/chroot_tmpdir/scmroot/erlang-relx'...
$ git fetch origin 782192389e0b0856de8c3dacb16b2e825670a748:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-relx
 * [new ref]         782192389e0b0856de8c3dacb16b2e825670a748 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7821923 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild