$ git clone -n https://src.fedoraproject.org/rpms/rubygem-rspec-collection_matchers.git /var/lib/mock/f38-build-side-42-init-devel-767984-27746/root/chroot_tmpdir/scmroot/rubygem-rspec-collection_matchers
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-767984-27746/root/chroot_tmpdir/scmroot/rubygem-rspec-collection_matchers'...
$ git fetch origin 015c80bbae5a8577c9240fa879b0a3b7a3463333:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-rspec-collection_matchers
 * [new ref]         015c80bbae5a8577c9240fa879b0a3b7a3463333 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 015c80b Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild