message: [Dashboard bug] should reset chartAlert when start new query
diff: @@ -41,6 +41,7 @@ export default function chartReducer(charts = {}, action) {
  [actions.CHART_UPDATE_STARTED](state) {
  return { ...state,
  chartStatus: 'loading',
  + chartAlert: null,
  chartUpdateEndTime: null,
  chartUpdateStartTime: now(),
  queryRequest: action.queryRequest,
  