$ git clone -n https://src.fedoraproject.org/rpms/rubygem-rspec-rails.git /var/lib/mock/f40-build-2492098-61663/root/chroot_tmpdir/scmroot/rubygem-rspec-rails
Cloning into '/var/lib/mock/f40-build-2492098-61663/root/chroot_tmpdir/scmroot/rubygem-rspec-rails'...
$ git fetch origin fc20923f4178bb8ec0be59a7d97e55113992e77e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-rspec-rails
 * [new ref]         fc20923f4178bb8ec0be59a7d97e55113992e77e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc20923 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild