CXSPA-4799 avoid 2 connector calls on F5 (#17869)

feature-libs/quote/core/facade/quote.service.spec.ts

@@ -130,7 +130,7 @@ class MockQuoteConnector implements Partial<QuoteConnector> {
 class MockActiveCartService implements Partial<ActiveCartFacade> {
   reloadActiveCart = createSpy().and.stub();
   takeActiveCartId = createSpy().and.returnValue(of(cartId));
-  isStable = createSpy().and.returnValue(of(true));
+  isStable = createSpy().and.returnValue(of(true, true));
   getActive = createSpy().and.returnValue(of(cart));
 }
 
@@ -310,6 +310,17 @@ describe('QuoteService', () => {
           done();
         });
     });
+
+    it('should call connector once if isStable emits twice', () => {
+      isQuoteCartActive = true;
+      quoteId = quote.code;
+      service
+        .getQuoteDetails()
+        .pipe()
+        .subscribe(() => {
+          expect(connector.getQuote).toHaveBeenCalledTimes(1);
+        });
+    });
   });
 
   describe('addDiscount', () => {

feature-libs/quote/core/facade/quote.service.ts

@@ -358,6 +358,7 @@ export class QuoteService implements QuoteFacade {
         //we need to ensure that the active cart has been loaded, in order to determine if the
         //quote is connected to a quote cart (and then directly ready for edit)
         this.activeCartService.isStable().pipe(
+          take(1),
           switchMap(() =>
             this.routingService.getRouterState().pipe(
               //we don't need to cover the intermediate router states where a future route is already known.