Can not reproduce on parsoid.wmflabs.org but not sure which version runs where, so reporting as reminder to confirm that it is fixed once deployed on MediaWiki.org as well.

Input:
This sentence contains '''wikitext bold''' and <b>html bold</b>, <strong>html strong</strong>.

Output:
This sentence contains '''wikitext bold''' and '''html bold''', <strong>html strong</strong>.

Example: https://www.mediawiki.org/w/index.php?title=VisualEditor%3ADoom&diff=565804&oldid=565802

Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=38738