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Bug: no math-mode detection for align-environment [9.3.7 (9.3.7-13-ge62c

From: Stefi
Subject: Bug: no math-mode detection for align-environment [9.3.7 (9.3.7-13-ge62ca4-elpaplus @ /home/stefi/.emacs.d/elpa/org-plus-contrib-20200713/)]
Date: Tue, 14 Jul 2020 13:49:32 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

Hi there,

I recently updated my emacs packages and noticed that \begin{align*}
does not trigger math-mode detection any more, so org-cdlatex does not
work. However, begin{equation} still does trigger the math-mode
detection. I have read the documentation of
"org-inside-LaTeX-fragment-p" and found something about matchers, but
nothing about equation or align environment and why it might be treated
differently for math-mode detection.

My test-file.org:

* blabla
\label{eq:1} \frac{}{}
test_{cds} \frac{}{}

test$_d$ fr

$\frac{}{} fds_{fdsf} \frac{}{}$



- detection works for: \begin{equation}, $$, \[\] (not in testfile)
- detection does not work for: \begin{align}, begin{align*}; subscript _
  does insert extra $_{}$, which it should not in math mode, and fr does
  not get expanded to \frac{}{}

Emacs  : GNU Emacs 26.3 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.20)
 of 2020-05-19
Package: Org mode version 9.3.7 (9.3.7-13-ge62ca4-elpaplus @

Kind regards,

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