What I expected to happen was...:
1. Get into a boat.
2. Travel from land A across a lake of water to land B.
3. Tap L SHIFT to get out of the boat and swim onto land B (the prompt told me to press L SHIFT to dismount).

What actually happened was...:
1. Get into a boat.
2. Travel from land A across a lake of water to land B.
3. Tap L SHIFT to get out of the boat when I was near land B.
4. Was teleported back to land A, the exact location where I entered the boat.

Steps to Reproduce:
1. Craft a boat.
2. Place boat in water.
3. Right click to get in boat.
4. Travel across water in boat.
5. Tapping right click did nothing to get out of the boat, so I tapped L SHIFT.
6. At this point I was teleported back to the land I started on.