message: Fix a bug, rerender the multiple text on items change in the react:
diff: @@ -7,6 +7,12 @@ import {ReactQuestionFactory} from "./reactquestionfactory";
  export class SurveyQuestionMultipleText extends SurveyQuestionElementBase {
  constructor(props: any) {
  super(props);
  + this.state = {colCountChanged: 0};
  + var self = this;
  + this.question.colCountChangedCallback = function () {
  + self.state.colCountChanged = self.state.colCountChanged + 1;
  + self.setState(self.state);
  + }
  }
  protected get question(): QuestionMultipleTextModel { return this.questionBase as QuestionMultipleTextModel; }
  render(): JSX.Element {
  