private void modifyExtensionRefsetMember(RefexChronicleBI<?> memberChron) throws ContradictionException, InvalidCAB, IOException {
		RefexVersionBI<?> mem = memberChron.getVersion(vc);
		RefexCAB bp = mem.makeBlueprint(vc,  IdDirective.PRESERVE, RefexDirective.INCLUDE);
		if (bp.getMemberUUID() == null) {
			bp.setMemberUuid(mem.getPrimordialUuid());
		}
		
		// Change String
		bp.put(ComponentProperty.STRING_EXTENSION_1, "Modified Testing String");

		
		// Change Description to Pref Term
		int parentRefsetPT = appDb.getRefsetIdentity().getVersion(vc).getPreferredDescription().getNid();
		bp.put(ComponentProperty.COMPONENT_EXTENSION_1_ID, parentRefsetPT);
		
		RefexChronicleBI<?> cabi = appDb.getBuilder().constructIfNotCurrent(bp);
		ConceptVersionBI refCon = appDb.getDB().getConcept(mem.getAssemblageNid()).getVersion(appDb.getVC());

		appDb.getDB().addUncommitted(refCon);
	}