$ git clone -n https://src.fedoraproject.org/rpms/ucx.git /var/lib/mock/f42-build-side-1-3585820-46908/root/chroot_tmpdir/scmroot/ucx
Cloning into '/var/lib/mock/f42-build-side-1-3585820-46908/root/chroot_tmpdir/scmroot/ucx'...
$ git fetch origin 9516a26abac68c8aa8f69a8112d290709c23c54b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ucx
 * [new ref]         9516a26abac68c8aa8f69a8112d290709c23c54b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9516a26 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild