pandoc-2.17.1: test/command/7863.md

```
% pandoc -f commonmark+yaml_metadata_block+sourcepos -t native
---
key:
  |
  value
...


Text
^D
[ Div
    ( "" , [] , [ ( "data-pos" , "8:1-9:1" ) ] )
    [ Para
        [ Span
            ( "" , [] , [ ( "data-pos" , "8:1-8:5" ) ] ) [ Str "Text" ]
        ]
    ]
]
```