$ git clone -n https://src.fedoraproject.org/rpms/rubygem-cairo-gobject.git /var/lib/mock/f40-build-2322484-58660/root/chroot_tmpdir/scmroot/rubygem-cairo-gobject
Cloning into '/var/lib/mock/f40-build-2322484-58660/root/chroot_tmpdir/scmroot/rubygem-cairo-gobject'...
$ git fetch origin 9131a6dcbb1f4ae5094f59e94a5cbb770b87b97d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-cairo-gobject
 * [new ref]         9131a6dcbb1f4ae5094f59e94a5cbb770b87b97d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9131a6d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild