$ git clone -n https://src.fedoraproject.org/rpms/libdmx.git /var/lib/mock/f39-build-1457248-32972/root/chroot_tmpdir/scmroot/libdmx
Cloning into '/var/lib/mock/f39-build-1457248-32972/root/chroot_tmpdir/scmroot/libdmx'...
$ git fetch origin 97b91ed92b730167be9845718ed8921594e24519:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdmx
 * [new ref]         97b91ed92b730167be9845718ed8921594e24519 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97b91ed Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild