fate: test both direct and indirect paths in hue filter.

tests/lavfi-regression.sh

@@ -44,7 +44,7 @@ do_lavfi "crop_vflip"         "crop=iw-100:ih-100:100:100,vflip"
 do_lavfi "drawbox"            "drawbox=224:24:88:72:#FF8010@0.5"
 do_lavfi "edgedetect"         "edgedetect"
 do_lavfi "fade"               "fade=in:5:15,fade=out:30:15"
-do_lavfi "hue"                "hue=s=sin(2*PI*t)+1"
+do_lavfi "hue"                "perms=random,hue=s=sin(2*PI*t)+1"
 do_lavfi "idet"               "idet"
 do_lavfi "null"               "null"
 do_lavfi "overlay_rgb"        "split[m],scale=88:72,pad=96:80:4:4[o2];[m]fifo[o1],[o1][o2]overlay=240:16:format=rgb"