[AAE-4661] Fix search results are still displayed when search term ge… (#6707)

* [AAE-4661] Fix search results are still displayed when search term gets deleted

* Fix unit tests

lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.spec.ts

@@ -243,6 +243,7 @@ describe('ContentNodeSelectorPanelComponent', () => {
             });
 
             it('should not show the breadcrumb if search was performed as last action', async () => {
+                component.searchTerm = 'mock-search-term';
                 triggerSearchResults(fakeResultSetPaging);
 
                 fixture.detectChanges();
@@ -263,6 +264,7 @@ describe('ContentNodeSelectorPanelComponent', () => {
             });
 
             it('should show the breadcrumb for the selected node when search results are displayed', async () => {
+                component.searchTerm = 'mock-search-term';
                 triggerSearchResults(fakeResultSetPaging);
 
                 const chosenNode = new Node({ path: { elements: ['one'] } });
@@ -642,6 +644,7 @@ describe('ContentNodeSelectorPanelComponent', () => {
             }));
 
             it('should emit showingSearch event with true while searching', async () => {
+                component.searchTerm = 'mock-search-term';
                 spyOn(customResourcesService, 'hasCorrespondingNodeIds').and.returnValue(true);
                 const showingSearchSpy = spyOn(component.showingSearch, 'emit');
 
@@ -685,6 +688,7 @@ describe('ContentNodeSelectorPanelComponent', () => {
             });
 
             it('should emit showingResults event with false if search api fails', async () => {
+                component.searchTerm = 'mock-search-term';
                 getCorrespondingNodeIdsSpy.and.throwError('Failed');
                 const showingSearchSpy = spyOn(component.showingSearch, 'emit');
                 component.queryBuilderService.execute({ query: { query: 'search' } });
@@ -845,6 +849,18 @@ describe('ContentNodeSelectorPanelComponent', () => {
                 }, 300);
             });
 
+            it('should not show the result list when results are returned but there is no search term typed', (done) => {
+                component.searchTerm = '';
+
+                setTimeout(() => {
+                    triggerSearchResults(fakeResultSetPaging);
+                    fixture.detectChanges();
+
+                    expect(component.showingSearchResults).toEqual(false);
+                    done();
+                }, 300);
+            });
+
             it('should highlight the results when search was performed in the next timeframe', (done) => {
                 typeToSearchBox('My');
 

lib/content-services/src/lib/content-node-selector/content-node-selector-panel.component.ts

@@ -304,7 +304,9 @@ export class ContentNodeSelectorPanelComponent implements OnInit, OnDestroy {
         this.queryBuilderService.executed
             .pipe(takeUntil(this.onDestroy$))
             .subscribe( (results: NodePaging) => {
+                if (this.searchTerm) {
                     this.showSearchResults(results);
+                }
             });
 
         this.userPreferencesService