fix(Ideas Summary): Count only the latest annotations toward students with idea tally

Author: hirokiterashima

src/assets/wise5/directives/teacher-summary-display/ideas-summary/ideas-summary.component.spec.ts

@@ -227,13 +227,14 @@ function ngInit_OR_FilterByPeriod() {
       const ideas = generateIdeas(1);
       spyOn(TestBed.inject(AnnotationService), 'getAnnotationsByNodeIdComponentId').and.returnValue(
         [
-          new Annotation({ periodId: 1, data: { ideas: ideas } } as any),
-          new Annotation({ periodId: 2, data: { ideas: ideas } } as any)
+          new Annotation({ periodId: 1, data: { ideas: ideas }, toWorkgroupId: 1 } as any),
+          new Annotation({ periodId: 1, data: { ideas: ideas }, toWorkgroupId: 1 } as any),
+          new Annotation({ periodId: 2, data: { ideas: ideas }, toWorkgroupId: 2 } as any)
         ]
       );
     });
 
-    it('includes all annotations when period is "All Periods" (-1)', () => {
+    it('includes all latest annotations for workgroups when period is "All Periods" (-1)', () => {
       component.periodId = -1;
       spyOn<any>(component, 'groupIdeas');
       component.ngOnInit();

src/assets/wise5/directives/teacher-summary-display/ideas-summary/ideas-summary.component.ts

@@ -62,7 +62,16 @@ export class IdeasSummaryComponent extends TeacherSummaryDisplayComponent {
     } else if (this.componentType === 'OpenResponse') {
       const annotations = this.annotationService
         .getAnnotationsByNodeIdComponentId(this.nodeId, this.componentId)
-        .filter((annotation) => this.periodId === -1 || annotation.periodId === this.periodId);
+        .filter((annotation) => this.periodId === -1 || annotation.periodId === this.periodId)
+        .reduceRight(
+          (latestAnnotations, annotation) =>
+            latestAnnotations.some(
+              (latestAnnotation) => latestAnnotation.toWorkgroupId === annotation.toWorkgroupId
+            )
+              ? latestAnnotations
+              : latestAnnotations.concat(annotation),
+          []
+        );
       this.groupIdeas(new OpenResponseSummaryData(annotations, this.rubric));
     }
   }