99053: Invalidate cache by default when performing the WorkflowItemActionPageComponent action

src/app/shared/testing/request-service.stub.ts

@@ -0,0 +1,12 @@
+import { Observable, of as observableOf } from 'rxjs';
+
+/**
+ * Stub service for {@link RequestService}.
+ */
+export class RequestServiceStub {
+
+  removeByHrefSubstring(_href: string): Observable<boolean> {
+    return observableOf(true);
+  }
+
+}