fix: alot

test/bar_tab_service_test.dart

@@ -565,5 +565,22 @@ void main() {
         expect(closedTabs.last.customerName, 'First');
       });
     });
+
+    group('hidden products', () {
+      test('a tab holding a deleted product can still be changed', () async {
+        final tab = await service.createTab(customerName: 'John');
+        await service.addProductToTab(
+          tabId: tab.id,
+          product: createTestProduct(),
+        );
+        await DriftProductService(database: database).deleteProduct('prod-1');
+
+        final item = (await service.getTabById(tab.id))!.items.single;
+        await service.adjustTabItemQuantity(tabItemId: item.id, delta: -1);
+        await service.deleteTab(tab.id);
+
+        expect(await service.getTabById(tab.id), isNull);
+      });
+    });
   });
 }