message: Fix createDatasource
diff: @@ -530,10 +530,10 @@ export function createDatasource(vizOptions) {
  endpoint: '/superset/sqllab_viz/',
  postPayload: { data: vizOptions },
  })
  - .then(({ data }) => {
  - dispatch(createDatasourceSuccess(data));
  + .then(({ json }) => {
  + dispatch(createDatasourceSuccess(json));
  - return Promise.resolve(data);
  + return Promise.resolve(json);
  })
  .catch(() => {
  dispatch(createDatasourceFailed(t('An error occurred while creating the data source')));
  