LaTeX export: Allow parenthesis before exponent of subscript
Keith writes:
> I noticed something strange and I think it's might be a bug converting
> to tex file. I've been trying to put a special symbol inside a
> bracket, e.g.
>
> air temperature (degree Celsius)
>
> and the symbol should look like ^{\circ}C in org file. It works well
> if it is standalone. However, when I put the brackets out of it, say
> (^{\circ}C), the pdf output looks bizarre. I have checked the tex
> output and the converting results from orgmode file are
>
> ^{\circ}C --> $^{\circ}$C
> (^{\circ}C) --> (^\{\circ}C)