$ git clone -n https://src.fedoraproject.org/rpms/linuxptp.git /var/lib/mock/f40-build-790496-136598/root/chroot_tmpdir/scmroot/linuxptp
Cloning into '/var/lib/mock/f40-build-790496-136598/root/chroot_tmpdir/scmroot/linuxptp'...
$ git fetch origin c4b2423acb3b342ef748e36bcd1031c36583a0a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/linuxptp
 * [new ref]         c4b2423acb3b342ef748e36bcd1031c36583a0a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4b2423 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild