iOS TextInput Component with nested text

I have reported before (link) but no response and issue has been closed.

Description:

Hi there! I have just found a bug on iOS multiple TextInput with using nested text display, which not able to have the correct style in some special cases. (Android works fine with the same code.)
As I need to have different style for different text in the same the text input box, nested text is applied instead of changing the style in TextInput

React Native version: 0.61

Steps To Reproduce

1. Start editing
2. Type Chinese / Emoji FIRST
3. type other wordings

Results

Start with Chinese wordings: style will be update after typing english / number
Start with Emoji: style won't be update

Expected Results

wordings will be having the style set, but still in default style

Code example:

<TextInput
   onChangeText={text => {
              this.setState({
                text
              })
            }}
>
   <Text style={{ color: 'red' }}>{this.state.text}</Text>
</TextInput>

Screenshot:

Normal case

Error case in which start with Chinese

Resume after typing english / number

Error case in which start with Emoji

I have a quick study and find that - (void)setAttributedText:(NSAttributedString *)attributedText from /node_modules/react-native/Libraries/Text/TextInput/Multiline/RCTUITextView.m is not called in the following case.

Thanks for your time and hope to hear feedbacks from your team!

ネストされた TextInput の例で iOS の動作を再現し、中国語のテキストと絵文字から始めます。node_modules/react-native/Libraries/Text/TextInput/Multiline/RCTUITextView.m、特に setAttributedText: を調べます。これらの入力に対してネストされたテキストスタイルが正しく更新され、期待されるデフォルト動作が維持されれば完了です。