$ git clone -n https://src.fedoraproject.org/rpms/R-markdown.git /var/lib/mock/f40-build-2270154-54793/root/chroot_tmpdir/scmroot/R-markdown
Cloning into '/var/lib/mock/f40-build-2270154-54793/root/chroot_tmpdir/scmroot/R-markdown'...
$ git fetch origin d92442b4bc1aad9a74d8670724bf69f8dcbf488a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-markdown
 * [new ref]         d92442b4bc1aad9a74d8670724bf69f8dcbf488a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d92442b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild