react-native: ReactNative v0.47.1 FlatList onEndReached problem.

when i update my project form 0.44.1 to 0.47.1, i found that onEndReached Function has been called repeatedly! and never stop call onEndReached.

version	V 0.44.1	V 0.47.1

Environment

1. react-native -v: 0.47.1
2. node -v: v6.11.0
3. npm -v: 3.10.10
4. yarn --version: v0.27.5

Android and iOS all have this problem.

<FlatList
                    ref={(flat) => { this._flat = flat; }}
                    ItemSeparatorComponent={()=>{return <View style={{height: 4}}/>}}
                    data={this.props.data}
                    initialNumToRender={4}
                    keyExtractor={(item, index)=>{ return index}}
                    onEndReached={this._handleMore}
                    onEndReachedThreshold={0.5}
                    onRefresh={this._handleNew}
                    refreshing={false}
                    renderItem={this._renderItem}
                    style={{backgroundColor: '#EFEFF6'}}
                />