bug#15436: 24.3.50; reads ~/.mailcap only once

[Eli Zaretskii]

> From: Gregor Zattler <telegraph@gmx.net>
> Date: Sun, 22 Sep 2013 21:45:40 +0200
> 
> Emacs reads ~/.mailcap only once, does not recognize later
> changes in this configuration file even if made with Emacs in the
> same session.  This happens with Emacs23 and Emacs-snapshot.  I
> consider this behaviour a bug.  Quitting Emacs and starting anew
> forces reload of ~/.mailcap.
> 
> How to reproduce:
> 
> When opening a file link to say an image or PDF document within
> org-mode via C-u C-u C-c C-o Emacs reads (in default
> configuration) ~/.mailcap in search for a application to open the
> file with.  If one then changes this ~/.mailcap, saves it and opens
> the same file again it is opened via the mailcap entry before the
> change.

Does it help to invoke "M-x mailcap-parse-mailcaps RET"?