* Fix shape regression of Mathematical sans-serif C (#1482).
* Fix variant selector for CYRILLIC CAPITAL LETTER BASHKIR KA (`U+04A0`) (#1484).
* Fix shape of unilaterally inward-serifed `U+A794` and `U+A7C4` (#1485).
* Fix shape of cursive LATIN CAPITAL LETTER Z WITH DESCENDER (`U+2C6B`) (#1486).
* Fix serif placement of italic `J`s (#1487).
