Enhancement: optimize tasks / stats reload (#7402)

src-ui/src/app/services/tasks.service.spec.ts

@@ -39,6 +39,12 @@ describe('TasksService', () => {
     expect(req.request.method).toEqual('GET')
   })
 
+  it('does not call tasks api endpoint on reload if already loading', () => {
+    tasksService.loading = true
+    tasksService.reload()
+    httpTestingController.expectNone(`${environment.apiBaseUrl}tasks/`)
+  })
+
   it('calls acknowledge_tasks api endpoint on dismiss and reloads', () => {
     tasksService.dismissTasks(new Set([1, 2, 3]))
     const req = httpTestingController.expectOne(

src-ui/src/app/services/tasks.service.ts

@@ -50,6 +50,7 @@ export class TasksService {
   constructor(private http: HttpClient) {}
 
   public reload() {
+    if (this.loading) return
     this.loading = true
 
     this.http