Intent of customizationHarnessService.test|title=CustomizationHarnessService registerExternalHarness removes harness on dispose|occurrence=1, customizationHarnessService.test|title=CustomizationHarnessService registerExternalHarness static harness reappears when shadowing external harness is disposed|occurrence=1

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.