The standardTestDataset.xml file is what contains the extra orders that were added in 1.10 e.g the one with orderId 444, this test data file gets executed for every test method that is a subclass of BaseContextSensitiveTest because the baseSetupWithStandardDataAndAuthentication() method has @Before annotation, meaning if we add @SkipBaseSetup, then standardTestDataset.xml won't get executed since this test class already executes its 1.10 complaint test dataset in the method annotated with @Before too hence not having the new orders in 1.10