(originally reported here: <https://ko.wikipedia.org/wiki/위키백과:사랑방_(기술)/2020년_7월#Reply_tool_as_a_Beta_Feature>)
DiscussionTools doesn't work on featured article discussions on ko.wp, e.g. on this page: https://ko.wikipedia.org/wiki/위키백과:알찬_글_후보
Reply links appear, but the widget doesn't open, instead showing the error:
>The "답변" link cannot be used to reply to this comment. To reply, please use the full page editor by clicking "원본 편집".
The reply links don't work because the subpages with discussions are transcluded using the template [[ https://ko.wikipedia.org/wiki/틀:알찬_글_토론 | 알찬 글 토론 ]] rather than directly (e.g. `{{알찬 글 토론|로드 (가수)}}` rather than `{{위키백과:알찬 글 후보/로드 (가수)}}`), in order to add the collapsible box around each discussion, so our tool isn't able to find the page where the comments are really written (and where the replies should be added).
We should investigate and see if we can add support for this case.
Ed: Example in English:
**Template:Discussion**
`{{:Discus/{{{1}}}}}`
**Discus/Test**
`Hello world`
**Test**
`{{Discussion|Test}}`
The final page **Test** outputs Hello world:
```lang=html
<p about="#mwt1" typeof="mw:Transclusion" data-mw='{"parts":[{"template":{"target":{"wt":"Discussion","href":"./Template:Discussion"},"params":{"1":{"wt":"Test"}},"i":0}}]}' id="mwAg">Hello world</p>
```
There is no mention of **Discus/Test** in the HTML output
HTML of the template page:
```lang=html
<p about="#mwt1" typeof="mw:Transclusion" data-mw='{"parts":[{"template":{"target":{"wt":":Discus/{{{1}}}","href":"./Discus/"},"params":{},"i":0}}]}' id="mwAg">{{:Discus/{{{1}}}}}</p>
```
DiscussionTools needs to recurse into each transclusion level, one by one, in order to identify the "real" page holding a given reply or topic, but currently this only works when the transclusion does not have parameters. Although Parsoid generates `mw:Param` markup for parameters out in free text, there is no `mw:Param` markup in the `mw:Transclusion` above, just unparsed wikitext `{{{1}}}`.