@Test
public void testAddIdenticalAlias() {

	MonolingualTextValue label = Datamodel.makeMonolingualTextValue("strudel aux pommes", "fr");
	MonolingualTextValue alias = Datamodel.makeMonolingualTextValue("Apfelstrudel", "fr");
	ItemDocument currentDocument = ItemDocumentBuilder.forItemId(Q1)
			.withLabel(label)
			.withAlias(alias)
			.build();
	TermStatementUpdate su = makeUpdate(currentDocument,
			Collections.emptyList(),
			Collections.emptyList(),
			Collections.singletonList(alias),
			Collections.emptyList());
	
	assertEquals("{}", su.getJsonUpdateString());
	assertTrue(su.isEmptyEdit());
}