@Test
	public void testSetValue_IntersectLeftCoalesces() {
		try (Transaction tx = b.startTransaction()) {
			root = manager.createRootObject(ctx.getSchema(new SchemaName("Session"))).getChild();
			TraceObjectValue valA = root.setValue(Lifespan.span(0, 9), "a", 1);

			assertEquals(valA, root.setValue(Lifespan.span(-5, 4), "a", 1));
			assertEquals(Lifespan.span(-5, 9), valA.getLifespan());
			assertEquals(1, root.getValues(Lifespan.ALL).size());
		}
	}
Fails because you cannot create a second root object.
Ghidra/Debug/Framework-TraceModeling/src/test/java/ghidra/trace/database/target/DBTraceObjectManagerTest.java