TextField does not work with Chinese or Japanese input

Number:rdar://FB8616295 Date Originated:2020-09-03
Status:Fixed Resolved:
Product:iOS Product Version:13.6, 13.7
Classification: Reproducible:Yes
When the Chinese or Japanese input keyboards are used, typing in a SwiftUI's TextField leads to garbage text. This happens at least in iOS 13.6 and 13.7.

These StackOverflow questions describe this very problem, including minimal reproducible examples and even videos:

* https://stackoverflow.com/q/60908880/674487
* https://stackoverflow.com/q/63500276/674487

It seems this problem also affects voice dictation: https://developer.apple.com/forums/thread/128721


This problem is fixed in iOS 14.

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