$ git clone -n https://src.fedoraproject.org/rpms/golang-github-goccy-json.git /var/lib/mock/f42-build-3347434-45004/root/chroot_tmpdir/scmroot/golang-github-goccy-json
Cloning into '/var/lib/mock/f42-build-3347434-45004/root/chroot_tmpdir/scmroot/golang-github-goccy-json'...
$ git fetch origin 3c145c1be4a4dcc4bc23941eeac46fa9203f4500:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-goccy-json
 * [new ref]         3c145c1be4a4dcc4bc23941eeac46fa9203f4500 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c145c1 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild