I can't scroll in child ScrollView when keyboard is open on iOS #21439

import React, { Component } from 'react';
import {View, ScrollView, Text, TextInput} from 'react-native';

export default class NestedScrollView extends Component {
  constructor(props) {
    super(props);
    this.state = {
    };
  }

  render() {
    return (
      <ScrollView style={{height:400, backgroundColor:'blue'}}>
        <View style={{width:200,height:100}}>
        <TextInput 
                placeholderTextColor={'#fff'}
                placeholder={'openkeyboard'}
            />
            <ScrollView style={{backgroundColor:'red'}}>
                <View style={{width:100}}>
                    <Text>test1</Text>
                    <Text>test2</Text>
                    <Text>test3</Text>
                    <Text>test4</Text>
                    <Text>test5</Text>
                    <Text>test6</Text>
                    <Text>test7</Text>
                    <Text>test8</Text>
                    <Text>test9</Text>
                    <Text>test0</Text>
                    <Text>test1</Text>
                </View>
            </ScrollView>
        </View>
      </ScrollView>
    );
  }
}