Non-snap-to-grid Tokens have bad last path info

[Phergus]

Describe the bug
Tokens which are not set to snap-to-grid have bad last path info stored in them.

To Reproduce
Steps to reproduce the behavior:

1. Drop token on map (any grid type).
2. Ensure Snap-to-grid is off. (Right-click -> No check on Snap-to-grid)
3. Drag token any distance.
4. Right-click on token and select Last Path.
5. See path has many waypoints indicated.
6. Impersonate token and execute [r: json.indent(getLastPath(1))] from chat.
   7: See path with hundreds of points.

Expected behavior
Dragging a token should produce a path that only has the start and end points plus any waypoints selected on the way.

Screenshots
Dragging Token:

Resulting Path:

MapTool Info

• Version: Nerps 1.4.5.3 plus 1.4.1.8, 1.4.1.7 NOT in 1.4.0.5
• Install: JAR

Desktop (please complete the following information):

• OS: Windows 10x64
• Version [10, 18.03]
• Java: "10.0.1" 2018-04-17

Additional context
See identical issue posted on Nerps fork: JamzTheMan#109