[[!comment format=mdwn
 username="joey"
 subject="""comment 2"""
 date="2021-05-03T16:26:26Z"
 content="""
I think this is a bug.

The smudge/clean filter already handles several similar cases so ought to
also be able to handle this one.

I've made a change that seems to work, and will *probably* not break other
cases, although this is a complex and subtle area.
"""]]
