$ git clone -n https://src.fedoraproject.org/rpms/cinch.git /var/lib/mock/f40-build-2339429-59649/root/chroot_tmpdir/scmroot/cinch
Cloning into '/var/lib/mock/f40-build-2339429-59649/root/chroot_tmpdir/scmroot/cinch'...
$ git fetch origin 4249c6a76ce444345ac48a3d6232efd869703da6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cinch
 * [new ref]         4249c6a76ce444345ac48a3d6232efd869703da6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4249c6a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild