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NotoSansCJK 2.004 VF cmapfix
Known issue: #28
You can use 9u4 version instead.
The fonts have been modified by subset_noto_cjk.py to remove cmap entries for characters that should default to emoji style in Android.
The fonts have been modified to have chws table. See https://github.com/kojiishi/east_asian_spacing for more details.