Anim to Play setting isn't visible when no mesh is assign to skeletal mesh component

If the user has a skeletal mesh component with no skeletal mesh assigned to it, there will be no Anim to Play setting visible (when Animation Mode is set to Use Animation Asset). Once a skeletal mesh is assigned, the setting is made visible. This gives the impression that the setting is missing entirely.

1. Open QAGame in editor.
2. Create a new blueprint actor and open it.
3. Add a skeletal mesh component to the blueprint.
4. In the Details panel set Animation Mode to Use Animation Asset.

RESULT:

With no skeletal mesh set to the component, there is no Anim to Play setting.

EXPECTED:

If a setting is not usable, it should be grayed out and not editable. Or maybe have a message letting the user know that no mesh is assigned to the component.

Animation asset dropdown keeps disappearing