Object type variable isn't accepted by Construct Object node

REGRESSION: Technically a regression from 4.16

Object variables aren't accepted by Construct Object class, even if the value is set to an Object blueprint. The following error is generated:

Cannot construct objects of type '/Script/CoreUObject.Object' in  Construct Object from Class

Workaround is to set the Object variable type to an actual Object blueprint.

1. Open QAGame in editor.
2. Create an Object blueprint, name it TestObject.
3. Open the level blueprint.
4. Drag off Event BeginPlay and add a Construct Object node.
5. Set Class to TestObject (you can also promote Outer to Variable to remove an inevitable warning).
6. Compile. Notice it compiles successfully.
7. Right-click the Class input and select Promote to Variable.
8. Compile again.

RESULT

The object variable isn't accept and generates compile error, even though the value is set to TestObject.

WORKAROUND

Set the variable type to TestObject.