Crash when quitting f-spot after capuring pics from the cam

["nick hatch" <nicholas hatch gmail com>]

Using f-spot 0.3.1 (f-spot 0.3.0 also), I get a crash when quitting f-spot if I've captured any pictures from my camera using gphoto during the session. 

Debug dumped to console:

> =================================================================
> Got a SIGSEGV while executing native code. This usually indicates
> a fatal error in the mono runtime or one of the native libraries
> used by your application.
> =================================================================
>
> Stacktrace:
>
> in (wrapper managed-to-native) LibGPhoto2.CameraFile:gp_file_unref (System.Runti me.InteropServices.HandleRef) <0x4>
> in (wrapper managed-to-native) LibGPhoto2.CameraFile:gp_file_unref (System.Runti me.InteropServices.HandleRef) <0xffffffe7>
> in LibGPhoto2.CameraFile:Cleanup () <0x27>
> in LibGPhoto2.Object:Dispose () <0xb>
> in GPhotoCameraFile:ReleaseGPhotoResources () <0x29>
> in GPhotoCamera:ReleaseGPhotoResources () <0x6b>
> in GPhotoCamera:Finalize () <0xd>
> in (wrapper runtime-invoke) System.Object:runtime_invoke_void
>  (object,intptr,int ptr,intptr) <0x54101001>
>
> Native stacktrace:
>
>         f-spot(mono_handle_native_sigsegv+0xbb) [0x814d9aa]
>         f-spot [0x813a9f6]
>         [0xffffe440]
>         /usr/lib/libgphoto2.so.2(gp_file_clean+0xc8) [0xb1da78ce]
>         [0xb40512c8]
>         [0xb405128c]
>         [0xb4051272]
>         [0xb4051114]
>         [0xb40537c6]
>         [0xb404e259]
>         f-spot [0x814f232]
>         f-spot [0x814fcf1]
>         f-spot [0x80b0266]
>         f-spot [0x80f76ea]
>         f-spot [0x810e8ca]
>         /lib/libpthread.so.0 [0xb7ef3512]
>         /lib/libc.so.6(__clone+0x5e) [0xb7e5ffce]

I'd be happy to try and track this down to a specific library if anyone thinks this might be a problem with my setup.

-Nick