$ git clone -n https://src.fedoraproject.org/rpms/rubygem-hiredis.git /var/lib/mock/f40-build-2224145-52770/root/chroot_tmpdir/scmroot/rubygem-hiredis
Cloning into '/var/lib/mock/f40-build-2224145-52770/root/chroot_tmpdir/scmroot/rubygem-hiredis'...
$ git fetch origin d9be867f2571fa9cca7ee84c229605c8bc5b1d86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-hiredis
 * [new ref]         d9be867f2571fa9cca7ee84c229605c8bc5b1d86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9be867 Rebuilt for https://fedoraproject.org/wiki/Changes/Ruby_3.3