$ git clone -n https://src.fedoraproject.org/rpms/revelation.git /var/lib/mock/f39-build-1557724-37300/root/chroot_tmpdir/scmroot/revelation
Cloning into '/var/lib/mock/f39-build-1557724-37300/root/chroot_tmpdir/scmroot/revelation'...
$ git fetch origin 26bace56154354fed413d28fbb5679e98631e7bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/revelation
 * [new ref]         26bace56154354fed413d28fbb5679e98631e7bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26bace5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild