Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point

Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point

Repro Rate: 4/4

Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue occurred there, it is not a regression.

1. Create a new Blank BP project
2. Create a new Blueprint based on Actor
3. Add a Cube Component
4. Add a Spline Component
5. Move the Spline above the cube so you can see both ends
6. Select one of the points on the Spline
   • Verify you can move the point around
7. Now select the Cube while the point on the Spline is still selected
   • Transform Gizmo remains on-screen and does not allow control over the Cube's transform.
8. Click into the Components blank space to deselect all components

Results: The Spline Point transform gizmo remains on-screen and has no affect onto the Spline Point.
Expected: The Spline Point transform gizmo does not remain on-screen and the end-user is able to select other components to transform them with the gizmos.