[PUSHED][REVIEW-3-6] fix for fdo#53839, don't crash for invalid repaint range in cond format code

[Noel Power]

On 28/08/12 02:36, Markus Mohrhard wrote:
> Hey,
>
>
> This patch is absolutely safe and will prevent the crash for now. For
> master I will need to think about a clean concept that also removes
> the performance problems with the current approach.
>
agreed, patch is safe

Noel