[drupal-devel] What does #post_process do?

[Richard Archer]

In http://drupal.org/node/35575 Karoly suggested that the form
needs a #post_process.

The only documentation I can find about #post_process is
"This also introduces the #post_process property, which allows
you to change the form based on stuff that has been submitted."

Well, this bug doesn't require the form to be changed. It just
needs to read a field from the form. So I don't see why or how
#post_process can be used here.

Anyone care to share some wisdom?

 ...Richard.