pandoc-3.12: test/command/10390.md

```
% pandoc -f mediawiki
 {| class="wikitable"
 |+ Overview of basic table markup
 ! Key
 |-
 | Value
 |}
^D
<table>
<caption>Overview of basic table markup</caption>
<thead>
<tr>
<th>Key</th>
</tr>
</thead>
<tbody>
<tr>
<td>Value</td>
</tr>
</tbody>
</table>
```