Merge branch 'winh-sidebar-mock-fix' into 'master'

Add missing tear down of sidebarMockInterceptor

Closes #32020

See merge request !11204

spec/javascripts/sidebar/sidebar_assignees_spec.js

@@ -24,6 +24,7 @@ describe('sidebar assignees', () => {
     SidebarService.singleton = null;
     SidebarStore.singleton = null;
     SidebarMediator.singleton = null;
+    Vue.http.interceptors = _.without(Vue.http.interceptors, Mock.sidebarMockInterceptor);
   });
   it('calls the mediator when saves the assignees', () => {

spec/javascripts/sidebar/sidebar_mediator_spec.js

@@ -14,6 +14,7 @@ describe('Sidebar mediator', () => {
     SidebarService.singleton = null;
     SidebarStore.singleton = null;
     SidebarMediator.singleton = null;
+    Vue.http.interceptors = _.without(Vue.http.interceptors, Mock.sidebarMockInterceptor);
   });
   it('assigns yourself ', () => {

spec/javascripts/sidebar/sidebar_service_spec.js

@@ -10,6 +10,7 @@ describe('Sidebar service', () => {
   afterEach(() => {
     SidebarService.singleton = null;
+    Vue.http.interceptors = _.without(Vue.http.interceptors, Mock.sidebarMockInterceptor);
   });
   it('gets the data', (done) => {