bug#6465: Error during redisplay: (error No match 4 in highlight (4 font-lock-warning-face))

[Chong Yidong]

> When using C-x v v to check something in, there's a lot of messages
> like this in the *Messages* buffer:
>
> Error during redisplay: (error No match 4 in highlight (4 
> font-lock-warning-face)) [3 times]
>
> Probably the cause is this change to `log-edit-font-lock-keywords':
>
> 2010-04-21  Stefan Monnier  <monnier <at> iro.umontreal.ca>
>
>             Make the log-edit comments use RFC822 format throughout.

Is this still happening to you?