LaTeX export is broken with 'num:nil` and 'ALT_TITLE`

[Rudolf Adamkovič]

REPRODUCTION:

1. Create a file containing:

   #+OPTIONS: num:nil
   
   * Test
   :PROPERTIES:
   :ALT_TITLE: alt
   :END:
   
   This is a test.

2. Open the file.
3. Export to a PDF file with LaTeX.

EXPECTED:

  Test

  This is a test.

ACTUAL:

  [
  alt]Test This is a test.

Rudy
-- 
"Programming reliably -- must be an activity of an undeniably
mathematical nature […] You see, mathematics is about thinking, and
doing mathematics is always trying to think as well as possible."
--- Edsger W. Dijkstra, 1981

Rudolf Adamkovič <rudolf@adamkovic.org> [he/him]
http://adamkovic.org