$ git clone -n https://src.fedoraproject.org/rpms/pipebench.git /var/lib/mock/f40-build-793945-139322/root/chroot_tmpdir/scmroot/pipebench
Cloning into '/var/lib/mock/f40-build-793945-139322/root/chroot_tmpdir/scmroot/pipebench'...
$ git fetch origin 28eec3a440bf9362b9e9a12812dc9d58d661438b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pipebench
 * [new ref]         28eec3a440bf9362b9e9a12812dc9d58d661438b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28eec3a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild