$ git clone -n https://src.fedoraproject.org/rpms/rubygem-ox.git /var/lib/mock/f40-build-777958-129669/root/chroot_tmpdir/scmroot/rubygem-ox
Cloning into '/var/lib/mock/f40-build-777958-129669/root/chroot_tmpdir/scmroot/rubygem-ox'...
$ git fetch origin 3d58fee6102a8c64fa0c4793257882c251235dd6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-ox
 * [new ref]         3d58fee6102a8c64fa0c4793257882c251235dd6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d58fee Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild