pandoc-3.10: test/command/10890.md

```
% pandoc --tab-stop=2 --from=native --to=markdown
[ DefinitionList
    [ ( [ Str "apple" ]
      , [ [ Para [ Str "pomaceous" ] , Para [ Str "fruit" ] ] ]
      )
    ]
]
^D
apple

: pomaceous

  fruit
```