en.wp user Fram reports:
"When I add something that VE decides needs "nowiki", it usually gives the warning "Wikitext markup detected". However, when I add <references/> to the bottom of a page, he wraps it in "nowiki"s, but no warning appears (while it does work with e.g. {{reflist}})"

My testing at https://en.wikipedia.org/w/index.php?title=User%3AThryduulf%2Fsandbox2&diff=571756019&oldid=570197356 shows that <i> and <small> also get nowikied without triggering the warning.

<!-- --> neither triggers the warning nor gets nowikied. I am about to start a discussion about whether that is desired or not.

Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=56213