Output frame is corrupted for v3 release

[HolyWu]

import vapoursynth as vs
core = vs.get_core()

clip = a YUV420P8 video

clip = core.nnedi3.nnedi3(clip, field=1, pscrn=1, fapprox=12, opt=True)

clip.set_output()

Processed frame with the above script
Processed frame with the above script but set opt=False

CPU is Intel Xeon E3-1231 v3. Since leaving pscrn and fapprox at their defaults doesn't incur this issue even though opt=True, I guess it's caused by FMA3 code path?

[dubhater]

Indeed, I screwed up there.