Editor movement control regression

Using Ctrl+Drag in 4.8 will not affect the location of selected actor if the viewport camera is facing away from selected actor. In 4.7.6 the actor would travel along the X axis even if the camera was not looking at the actor (Regression).

Working CL: 2513093

Broken CL: 2513846

1. Open UE4 Editor (any project)
2. Add cube mesh to the level
3. Turn camera to face away from the mesh
4. Hold Ctrl+LMB and drag mouse to the right
5. Turn back to the mesh

Result:
Cube is in the same location as before turning away

Expected:
Cube moves along the X axis when mouse is dragged.