$ git clone -n https://src.fedoraproject.org/rpms/rubygem-redis-client.git /var/lib/mock/f40-build-1780614-24818/root/chroot_tmpdir/scmroot/rubygem-redis-client
Cloning into '/var/lib/mock/f40-build-1780614-24818/root/chroot_tmpdir/scmroot/rubygem-redis-client'...
$ git fetch origin 55552b0fcaefa53d921b9ce131e3cbfba9058b4c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-redis-client
 * [new ref]         55552b0fcaefa53d921b9ce131e3cbfba9058b4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55552b0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild