ABR & no-cutree combination broken in quality, blurred images found in first few frames.

[Mahesh Pittala]

exist in 1.6 and 1.0 Tags, have tested with this commandline: x265.exe city_4cif_60fps.y4m --bitrate 1000 --no-cutree --frames 50 -p slower -o city.hevc

configurations: vc11-x86_64, 8bpp build