Comments in wikitext can lead to big chunks of HTML commented out

[j-rausch]

I noticed that wikitext snippets containing <! -- can cause problems in the generated HTML documents, if they are not closed properly. This can lead to huge chunks of documents missing and/or invalid htmls.

An example:
Snippets such as

Mech Guard #1, Wealthy Jock || || <ref name="btva"/><!-- <ref>{{cite AV media | at=Closing credits | title=[[Batman Unlimited: Animal Instincts]] | year=2015 | medium=film}}</ref>  -->

in https://en.wikipedia.org/w/index.php?title=Matthew_Mercer&action=edit&editintro=Template:BLP_editintro
will lead to this html section, which is missing the comment end:

...
 <td><span class="sentence">Mech Guard #1, Wealthy Jock</span></td> 
<td><span class="sentence"></span></td> 
<td><span class="sentence"><! --></span></td>
</tr> 

The same problem is caused by lines such as <!-- NEED ROLE CITED and <!-- NEED SOURCE AND NOTABILITY in the wikitext of the same article.

[spencermountain]

yikes, thank you.
will check it out

[spencermountain]

fixed in 6.2.0
thanks