== Compositor ==

This fixes occasional crashes on uninitialized memory, when we open a blend 
file which has movie or image input nodes pointing to none existent 
source files.

source/blender/compositor/operations/COM_ImageOperation.cpp

@@ -98,6 +98,10 @@ void BaseImageOperation::deinitExecution()
 void BaseImageOperation::determineResolution(unsigned int resolution[], unsigned int preferredResolution[])
 {
 	ImBuf *stackbuf = getImBuf();
+
+        resolution[0] = 0;
+        resolution[1] = 0;
+
 	if (stackbuf) {
 		resolution[0] = stackbuf->x;
 		resolution[1] = stackbuf->y;