ox: Properly fix internal regexps after each buffer change
* lisp/ox.el (org-export-as): Refresh regexps before executing Babel
code, running last hook and parsing buffer so precomputed regular
expressions are correct at each of these steps.
This is not necessary before macros since those are not expected to
rely on computed expression. Actually, advanced macros, i.e. with
"(eval ...)" syntax, could make use of them, but a Babel snippet is
more likely in this situation.
Reported-by: Robert Klein <RoKlein@roklein.de>
<http://permalink.gmane.org/gmane.emacs.orgmode/98550>