diff --git a/hibernate-core/src/main/java/org/hibernate/type/CollectionType.java b/hibernate-core/src/main/java/org/hibernate/type/CollectionType.java
index 18d3bdd342..1f4ac97ab3 100644
--- a/hibernate-core/src/main/java/org/hibernate/type/CollectionType.java
+++ b/hibernate-core/src/main/java/org/hibernate/type/CollectionType.java
@@ -742,7 +742,8 @@ public abstract class CollectionType extends AbstractType implements Association
 		// need to put the merged elements in a new collection
 		Object result = ( target == null ||
 				target == original ||
-				target == LazyPropertyInitializer.UNFETCHED_PROPERTY ) ?
+				target == LazyPropertyInitializer.UNFETCHED_PROPERTY ||
+				target instanceof PersistentCollection && ( (PersistentCollection) target ).isWrapper( original ) ) ?
 				instantiateResult( original ) : target;
 
 		//for arrays, replaceElements() may return a different reference, since
diff --git a/hibernate-core/src/test/java/org/hibernate/test/annotations/selectbeforeupdate/UpdateDetachedTest.java b/hibernate-core/src/test/java/org/hibernate/test/annotations/selectbeforeupdate/UpdateDetachedTest.java
index e08719b4d1..673607968f 100644
--- a/hibernate-core/src/test/java/org/hibernate/test/annotations/selectbeforeupdate/UpdateDetachedTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/test/annotations/selectbeforeupdate/UpdateDetachedTest.java
@@ -143,7 +143,7 @@ public class UpdateDetachedTest extends BaseCoreFunctionalTestCase{
 	@Test
 	@TestForIssue(jiraKey = "HHH-14319")
 	public void testUpdateDetachedWithAttachedPersistentSet() {
-		final Bar bar = new Bar( 4, "Bar" );
+		final Bar bar = new Bar( 5, "Bar" );
 		final Set<Comment> comments = new HashSet<>();
 		comments.add( new Comment( "abc", "me" ) );
 		bar.comments = comments;