Unable to drag windows to the screen edge for snap tiling via touch

[DanGough]

What Happened

I drag the window to the edge of my screen via touch; the window stops moving when its edge hits the screen edge, so I can't move it far enough to trigger the window snapping.

Expected Behavior

I expect it to behave like with a mouse - the window can be dragged off-screen until my finger/cursor hit-point hits the screen edge to trigger the event.

Steps to Reproduce

1. Extend finger
2. Use finger to drag window to edge of screen

Platform Information

Latest generally available eOS 5.1