Display Epics in Epic Board

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ee/app/assets/javascripts/boards/constants.js

+import { s__ } from '~/locale';
+
 export const DRAGGABLE_TAG = 'div';
 
 /* eslint-disable @gitlab/require-i18n-strings */
@@ -39,6 +41,15 @@ export const GroupByParamType = {
   epic: 'epic',
 };
 
+export const ErrorMessages = {
+  fetchIssueError: s__(
+    'Boards|An error occurred while fetching the board issues. Please reload the page.',
+  ),
+  fetchEpicsError: s__(
+    'Boards|An error occurred while fetching the board epics. Please reload the page.',
+  ),
+};
+
 export default {
   DRAGGABLE_TAG,
   EpicFilterType,

ee/app/assets/javascripts/boards/stores/mutations.js

@@ -3,6 +3,7 @@ import Vue from 'vue';
 import { moveIssueListHelper } from '~/boards/boards_util';
 import mutationsCE, { addIssueToList, removeIssueFromList } from '~/boards/stores/mutations';
 import { s__ } from '~/locale';
+import { ErrorMessages } from '../constants';
 import * as mutationTypes from './mutation_types';
 
 const notImplemented = () => {
@@ -83,15 +84,7 @@ export default {
   },
 
   [mutationTypes.RECEIVE_ITEMS_FOR_LIST_FAILURE]: (state, listId) => {
-    if (state.isEpicBoard) {
-      state.error = s__(
-        'Boards|An error occurred while fetching the board epics. Please reload the page.',
-      );
-    } else {
-      state.error = s__(
-        'Boards|An error occurred while fetching the board issues. Please reload the page.',
-      );
-    }
+    state.error = state.isEpicBoard ? ErrorMessages.fetchEpicsError : ErrorMessages.fetchIssueError;
     Vue.set(state.listsFlags, listId, { isLoading: false, isLoadingMore: false });
   },
 

ee/spec/frontend/boards/components/sidebar/board_sidebar_iteration_select_spec.js

@@ -72,7 +72,7 @@ describe('BoardSidebarIterationSelect', () => {
   const createStore = ({
     initialState = {
       activeId: mockIssue.id,
-      issues: { [mockIssue.id]: { ...mockIssue } },
+      boardItems: { [mockIssue.id]: { ...mockIssue } },
     },
   } = {}) => {
     store = new Vuex.Store({

locale/gitlab.pot

@@ -17900,7 +17900,7 @@ msgstr ""
 msgid "Loading issues"
 msgstr ""
 
-msgid "Loading more issues"
+msgid "Loading more"
 msgstr ""
 
 msgid "Loading snippet"