$ git clone -n https://src.fedoraproject.org/rpms/jwhois.git /var/lib/mock/f40-build-799041-142136/root/chroot_tmpdir/scmroot/jwhois
Cloning into '/var/lib/mock/f40-build-799041-142136/root/chroot_tmpdir/scmroot/jwhois'...
$ git fetch origin d6cf4a43ea549d913155f2c3a32b16f67a4a82e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jwhois
 * [new ref]         d6cf4a43ea549d913155f2c3a32b16f67a4a82e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6cf4a4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild