Factor in the Markdown default in one more location.
Review Request #6523 — Created Oct. 29, 2014 and submitted — Latest diff uploaded
The previous change to factor in Markdown defaults didn't update one
critical function. This function determines if Markdown should be used
when determining CSS classes in a couple locations, and when determining
if plain text should be escaped for Markdown.
Unit tests pass.
Checked that the result of the function was correct for a user's preference.