[O] Bug: Falsely identify Table formula as INVISIBLE target

[Muchenxuan Tong]

I use a formula like this in my org table:

#+TBLFM: $>=vmean($<<..$>>);%.3f

However, when I export the org table to a latex file, there appears a line in the tex file like this:

<<..\$>>(INVISIBLE)

If I use  #+TBLFM: $>=vmean($2..$>>);%.3f, the problem will disappear. I think this is caused by the functions in org-exp.el falsely identifies the formula as INVISIBLE target.

By: Muchenxuan Tong