Backport commit 79d04ae13 from Emacs

* lisp/org-element.el (org-element-parse-secondary-string):
Don't set buffer-local variables buffer-file-name and buffer-file-truename
in temporary buffer.

Don't set file name variable in org-element-parse-secondary-string (bug#44524)
79d04ae13ff33a93f631061d912168e9703251dd
Juri Linkov
Tue Nov 10 21:27:37 2020 +0200

lisp/org-element.el

@@ -4133,7 +4133,9 @@ If STRING is the empty string or nil, return nil."
 	  (dolist (v local-variables)
 	    (ignore-errors
 	      (if (symbolp v) (makunbound v)
-		(set (make-local-variable (car v)) (cdr v)))))
+		;; Don't set file name to avoid mishandling hooks (bug#44524)
+		(unless (memq (car v) '(buffer-file-name buffer-file-truename))
+		  (set (make-local-variable (car v)) (cdr v))))))
 	  ;; Transferring local variables may put the temporary buffer
 	  ;; into a read-only state.  Make sure we can insert STRING.
 	  (let ((inhibit-read-only t)) (insert string))