Subject: 24.1; C-mode indentation gives wrong-type-argument error.

From: [email-masked] (Kim F. Storm)
Date: Tue, 19 Jun 2012 22:45:32 +0200

Every now and then, while editing some C files, indentation fails
with a wrong-type-argument number-or-marker-p error.

I have seen it happen when yanking text - but also just typing code
and all of a sudden it fails to indent after a {.

Here is the last incident: