Fix T42408: FSAA affects Cycles Image Compositing

Use FSAA settings only if current render engine is BI or GE/

That's for until we'll support FSAA in Cycles or other render engines.

source/blender/render/intern/source/pipeline.c

@@ -492,6 +492,12 @@ static int check_mode_full_sample(RenderData *rd)
 {
 	int scemode = rd->scemode;
 
+	if (!STREQ(rd->engine, RE_engine_id_BLENDER_RENDER) &&
+	    !STREQ(rd->engine, RE_engine_id_BLENDER_GAME))
+	{
+		scemode &= ~R_FULL_SAMPLE;
+	}
+
 	if ((rd->mode & R_OSA) == 0)
 		scemode &= ~R_FULL_SAMPLE;