Fix #22354, #22727, #22501: image window not display correct

renders with compositing and slots.

source/blender/render/extern/include/RE_pipeline.h

@@ -130,8 +130,8 @@ typedef struct RenderResult {
 	/* for render results in Image, verify validity for sequences */
 	int framenr;
 
-	/* for acquire image, to indicate if it is compo/seq result */
-	int compo_seq;
+	/* for acquire image, to indicate if it there is a combined layer */
+	int have_combined;
 
 	/* render info text */
 	char *text;