Use reduce instead of a forEach

Changed an isArray check to use -1
Added comment to boards search manager to explain behaviour

app/assets/javascripts/boards/boards_bundle.js

@@ -62,7 +62,13 @@ $(() => {
     created () {
       gl.boardService = new BoardService(this.endpoint, this.bulkUpdatePath, this.boardId);
-      gl.boardsFilterManager = new FilteredSearchBoards(Store.filter, true);
+      this.filterManager = new FilteredSearchBoards(Store.filter, true);
+
+      // Listen for updateTokens event
+      this.$on('updateTokens', this.updateTokens);
+    },
+    beforeDestroy() {
+      this.$off('updateTokens', this.updateTokens);
     },
     mounted () {
       Store.disabled = this.disabled;
@@ -81,7 +87,12 @@ $(() => {
           Store.addBlankState();
           this.loading = false;
         });
-    }
+    },
+    methods: {
+      updateTokens() {
+        this.filterManager.updateTokens();
+      }
+    },
   });
   gl.IssueBoardsSearch = new Vue({

app/assets/javascripts/boards/components/board_card.js

@@ -17,7 +17,8 @@ export default {
         :list="list"
         :issue="issue"
         :issue-link-base="issueLinkBase"
-        :root-path="rootPath" />
+        :root-path="rootPath"
+        :update-filters="true" />
     </li>
   `,
   components: {

app/assets/javascripts/boards/components/issue_card_inner.js

@@ -23,6 +23,11 @@
         type: String,
         required: true,
       },
+      updateFilters: {
+        type: Boolean,
+        required: false,
+        default: false,
+      },
     },
     methods: {
       showLabel(label) {
@@ -31,6 +36,8 @@
         return !this.list.label || label.id !== this.list.label.id;
       },
       filterByLabel(label, e) {
+        if (!this.updateFilters) return;
+
         const filterPath = gl.issueBoards.BoardsStore.filter.path.split('&');
         const labelTitle = encodeURIComponent(label.title);
         const param = `label_name[]=${labelTitle}`;
@@ -46,7 +53,8 @@
         gl.issueBoards.BoardsStore.filter.path = filterPath.join('&');
         Store.updateFiltersUrl();
-        gl.boardsFilterManager.updateTokens();
+
+        gl.IssueBoardsApp.$emit('updateTokens');
       },
       labelStyle(label) {
         return {

app/assets/javascripts/boards/filtered_search_boards.js

@@ -4,6 +4,9 @@ export default class FilteredSearchBoards extends gl.FilteredSearchManager {
     this.store = store;
     this.updateUrl = updateUrl;
+
+    // Issue boards is slightly different, we handle all the requests async
+    // instead or reloading the page, we just re-fire the list ajax requests
     this.isHandledAsync = true;
   }

app/assets/javascripts/boards/models/list.js

@@ -64,16 +64,14 @@ class List {
   }
   getIssues (emptyIssues = true) {
-    const data = { page: this.page };
-    gl.issueBoards.BoardsStore.filter.path.split('&').forEach((filterParam) => {
-      if (filterParam === '') return;
+    const data = gl.issueBoards.BoardsStore.filter.path.split('&').reduce((data, filterParam) => {
+      if (filterParam === '') return data;
       const paramSplit = filterParam.split('=');
       const paramKeyNormalized = paramSplit[0].replace('[]', '');
       const isArray = paramSplit[0].indexOf('[]');
-      let value = decodeURIComponent(paramSplit[1]);
-      value = value.replace(/\+/g, ' ');
-      if (isArray >= 0) {
+      const value = decodeURIComponent(paramSplit[1]).replace(/\+/g, ' ');
+      if (isArray !== -1) {
         if (!data[paramKeyNormalized]) {
           data[paramKeyNormalized] = [];
         }
@@ -82,7 +80,9 @@ class List {
       } else {
         data[paramKeyNormalized] = value;
       }
-    });
+
+      return data;
+    }, { page: this.page });
     if (this.label && data.label_name) {
       data.label_name = data.label_name.filter(label => label !== this.label.title);