0.51: seg fault when closing a raw file

[rmtk]

I took photos in raw format with my Olympus E-PL1. I can view and edit them with XnviewMP but when I close a viewer tab the program crashs.
Both linux and windows versions have this problem.

Here is a sample: https://docs.google.com/open?id=0B2iTtt ... VhzNk1GcVk

[rmtk]

Add: This crash only happens when setting "camera raw using embedded preview".

[xnview]

i can reproduce...