Using `toUpperCase` or `textTransform: 'uppercase'` breaks on an Android controlled TextInput

React Native version: 0.61.4 and lower

Trying to force capitalization of characters inside a TextInput is broken on Android.

• autoCapitalize="characters" doesn't seem to do anything
• Using toUpperCase in the onChangeText hook causes duplication of letters
• Using textTransform: 'uppercase' in styles block causes the same duplication of letters
• Using textTransform: 'uppercase' in a non-controlled TextInput does nothing

Steps To Reproduce

1. Create a controlled TextInput and either use onTextChanged to modify the text to uppercase or use text transform in the styles block
2. Type multiple lowercase characters into the text box

Describe what you expected to happen:
Characters should be capitalized

What actually happens:
Characters are capitalized and duplicated

Snack, code example, screenshot, or link to a repository:
https://snack.expo.io/@nmi09/rn-android-capitalize-input-bug

Commencez par la reproduction Snack liée et le point d’entrée contrôlé de Android TextInput, en testant autoCapitalize, les transformations de onChangeText et textTransform: 'uppercase'. Confirmez que les entrées en minuscules sont mises en majuscules sans duplication de caractères, et vérifiez également le comportement non contrôlé signalé.