Variation in font size display

In this post http://gardenerscorner.co.uk/forum/threads/tomato-taste-test-2013.54203/page-2#post-736041 the numerical character 1 displays like this



But if replying (using both highlight/quote or the reply button) it reduces in size

 

I went back to my post and using BBC Code Editor saw that the offending numeral 1 had been increased in font size but not by me when posting! Somehow the forum software did it all by itself!

Another bug. (I was playing around with numerical characters immediately prior to posting and that may have something to do with it)

 

Somebody/thing seems to have edited that (my) post (not me) and not only changed the big 1 font size but also changed F to f

Perhaps an Administrator could check out what's been happening using the 'Edit History' function? (available since last release of Xenforo)