Re-enable a test in TestDelta after Arnost's fix

TestDelta.testObjectDeltaFindItemDeltaModifyNonExistentPropertyInReplacedContainer
was failing because of a fault that Arnost has recently fixed. So this
test can be re-enabled now. Related to MID-4689.

infra/prism/src/test/java/com/evolveum/midpoint/prism/TestDelta.java

@@ -1187,7 +1187,7 @@ public void testObjectDeltaFindItemDeltaModifyPropertyInReplacedContainer() thro
 //				((PropertyDelta)itemDelta).getValuesToReplace(), Boolean.TRUE);
 	}
 
-	@Test(enabled = false)      // MID-4689
+	@Test // MID-4689
     public void testObjectDeltaFindItemDeltaModifyNonExistentPropertyInReplacedContainer() throws Exception {
 		final String TEST_NAME="testObjectDeltaFindItemDeltaModifyNonExistentPropertyInReplacedContainer";
 		displayTestTitle(TEST_NAME);