private void verifyAssociationContainsNoAppliedMarkupItems(VTAssociation association)
			throws VTAssociationStatusException {
		if (association.hasAppliedMarkupItems()) {
			throw new VTAssociationStatusException(
				"VTMarkupItemManager contains applied markup items");
		}
	}
Called when an existing session has been initialized with its programs.  This is not called
when a new session is created.
Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/api/db/AssociationDatabaseManager.java