$ git clone -n https://src.fedoraproject.org/rpms/ibutils.git /var/lib/mock/f40-build-2004506-44958/root/chroot_tmpdir/scmroot/ibutils
Cloning into '/var/lib/mock/f40-build-2004506-44958/root/chroot_tmpdir/scmroot/ibutils'...
$ git fetch origin 6d4cf4c4c9b223418f5c897fa7a6e125306c05a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ibutils
 * [new ref]         6d4cf4c4c9b223418f5c897fa7a6e125306c05a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d4cf4c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild