нужно указать состояние
class App extends Component {
state = {
firstValue: "",
secondValue: ""
};
handleChange = (value, state) => {
this.setState({ [state]: value });
};
render() {
return (
<Select
name="form-field-name"
value={this.state.value}
onChange={(value) => this.handleChange(value, "firstValue")}
options={[
{ value: "one", label: "One" },
{ value: "two", label: "Two" }
]}
/>
<Select
name="form-field-name"
value={this.state.value}
onChange={(value) => this.handleChange(value, "secondValue")}
options={[
{ value: "one", label: "One" },
{ value: "two", label: "Two" }
]}
/>
);
}
}