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

Beginne mit der verknüpften Snack-Reproduktion und dem kontrollierten Android TextInput-Einstiegspunkt und teste autoCapitalize, onChangeText-Transformationen und textTransform: 'uppercase'. Bestätige, dass Eingaben in Kleinbuchstaben ohne doppelte Zeichen großgeschrieben werden, und prüfe auch das gemeldete nicht kontrollierte Verhalten.