Elasticsearch: Fix query initialization action (#29652)

public/app/plugins/datasource/elasticsearch/components/QueryEditor/BucketAggregationsEditor/state/reducer.test.ts

+import { defaultBucketAgg } from 'app/plugins/datasource/elasticsearch/query_def';
 import { reducerTester } from 'test/core/redux/reducerTester';
 import { changeMetricType } from '../../MetricAggregationsEditor/state/actions';
 import { BucketAggregation, DateHistogram } from '../aggregations';
@@ -10,6 +11,7 @@ import {
   removeBucketAggregation,
 } from './actions';
 import { reducer } from './reducer';
+import { initQuery } from '../../state';
 
 describe('Bucket Aggregations Reducer', () => {
   it('Should correctly add new aggregations', () => {
@@ -140,4 +142,11 @@ describe('Bucket Aggregations Reducer', () => {
       )
       .thenStateShouldEqual([{ ...firstAggregation, settings: expectedSettings }, secondAggregation]);
   });
+
+  it('Should correctly initialize first Bucket Aggregation', () => {
+    reducerTester()
+      .givenReducer(reducer, [])
+      .whenActionIsDispatched(initQuery())
+      .thenStateShouldEqual([defaultBucketAgg('2')]);
+  });
 });

public/app/plugins/datasource/elasticsearch/components/QueryEditor/BucketAggregationsEditor/state/reducer.ts

@@ -102,7 +102,7 @@ export const reducer = (
       });
 
     case INIT:
-      return [defaultBucketAgg()];
+      return [defaultBucketAgg('2')];
 
     default:
       return state;

public/app/plugins/datasource/elasticsearch/components/QueryEditor/MetricAggregationsEditor/state/reducer.test.ts

@@ -13,6 +13,7 @@ import {
 import { Derivative, ExtendedStats, MetricAggregation } from '../aggregations';
 import { defaultMetricAgg } from '../../../../query_def';
 import { metricAggregationConfig } from '../utils';
+import { initQuery } from '../../state';
 
 describe('Metric Aggregations Reducer', () => {
   it('should correctly add new aggregations', () => {
@@ -219,4 +220,11 @@ describe('Metric Aggregations Reducer', () => {
       .whenActionIsDispatched({ type: 'THIS ACTION SHOULD NOT HAVE ANY EFFECT IN THIS REDUCER' })
       .thenStateShouldEqual(initialState);
   });
+
+  it('Should correctly initialize first Metric Aggregation', () => {
+    reducerTester()
+      .givenReducer(reducer, [])
+      .whenActionIsDispatched(initQuery())
+      .thenStateShouldEqual([defaultMetricAgg('1')]);
+  });
 });

public/app/plugins/datasource/elasticsearch/components/QueryEditor/MetricAggregationsEditor/state/reducer.ts

@@ -141,7 +141,7 @@ export const reducer = (
       });
 
     case INIT:
-      return [defaultMetricAgg()];
+      return [defaultMetricAgg('1')];
 
     default:
       return state;