Thread:User talk:Yair rand/linebreak after/before header/reply

I did a test here and it looks like the filter doesn't expand templates before setting new_wikitext. My javascript editor tools start L3 headings with { {subst:=}} to maintain the relation between the number linked by the edit section links and the number of lines beginning with = in the wikitext, so someone adding a new entry using it would set off the filter, and since the change doesn't affect anything else afaik, I figure it's not a problem. (BTW, adding a new message in the header of my talk page doesn't set off the "You have new messages" bar...)