```
% pandoc --metadata-file command/7813-meta.yaml -t native -s
Hi
^D
Pandoc
  Meta
    { unMeta =
        fromList
          [ ( "abstract"
            , MetaBlocks
                [ Para
                    [ Str "a"
                    , Space
                    , Str "footnote"
                    , Note [ Para [ Str "content" ] ]
                    , Space
                    , Str "in"
                    , Space
                    , Str "abstract."
                    ]
                ]
            )
          ]
    }
  [ Para [ Str "Hi" ] ]
```