Shift + Leftclick selection not working in World Outliner

The Shift + Leftclick selection range appears to break when selecting something in the World Outliner first followed by clicking something in the Viewport and then shift selecting a range back in the Outliner.

1. Add 3 cubes and a sphere to the level
2. Select the sphere in the World Outliner
3. Then select the first cube in the Viewport 
4. Now holding shift, click the last cube in the World Outliner

Result: The shift selection breaks and ends up selecting a lot more objects than the range of the shift selection.

Expected: The shift selection should just select the 3 cubes.