$ git clone -n https://src.fedoraproject.org/rpms/rubygem-hiredis.git /var/lib/mock/f39-build-1502681-34937/root/chroot_tmpdir/scmroot/rubygem-hiredis
Cloning into '/var/lib/mock/f39-build-1502681-34937/root/chroot_tmpdir/scmroot/rubygem-hiredis'...
$ git fetch origin 3f8d99d9f312b712e8bbf47ec8b20ec035b74e11:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-hiredis
 * [new ref]         3f8d99d9f312b712e8bbf47ec8b20ec035b74e11 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f8d99d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild