HHH-11944 The getDelegate() method here is the method from EntityManager

It should not return the delegate but the current Session impl proper.

The name is a bit misleading but it comes from JPA so we cannot do
anything about it.

hibernate-core/src/main/java/org/hibernate/engine/spi/SessionDelegatorBaseImpl.java

@@ -618,9 +618,14 @@ public class SessionDelegatorBaseImpl implements SessionImplementor {
 		return delegate.unwrap( cls );
 	}
 
+	/**
+	 * This is an implementation of EntityManager#getDelegate(). It returns the current session and not the delegate
+	 * session as it is what we want. The name of the method is misleading here but, as it is part of JPA, we cannot do
+	 * anything about it.
+	 */
 	@Override
 	public Object getDelegate() {
-		return delegate;
+		return this;
 	}
 
 	@Override