message: fix(preset-umi): deps.react could be undefined
diff: @@ -52,7 +52,9 @@ export default (api: IApi) => {
  });
  // FIXME: force include react & react-dom
  + if (api.appData.deps['react']) {
  api.appData.deps['react'].version = api.appData.react.version;
  + }
  api.appData.deps['react-dom'] = {
  version: api.appData.react.version,
  matches: ['react-dom'],
  