$ git clone -n https://src.fedoraproject.org/rpms/ghc-cached-json-file.git /var/lib/mock/f40-build-2279468-55346/root/chroot_tmpdir/scmroot/ghc-cached-json-file
Cloning into '/var/lib/mock/f40-build-2279468-55346/root/chroot_tmpdir/scmroot/ghc-cached-json-file'...
$ git fetch origin 95f70fb1a2f5c6bc56e3642b617cd16acd4de8b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cached-json-file
 * [new ref]         95f70fb1a2f5c6bc56e3642b617cd16acd4de8b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 95f70fb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild