Dragging first and last waypoint does not work

[thijssmudde]

In my app there are multiple waypoints inserted by the user. Each one has to be draggable. However, when dragging the first or last waypoint, which is also the first and last position in the positions array, the position remains the same.

Example:

positions: [[0,0],[1,1],[2,0]]
waypoints: [[0,0],[2,0]]

First waypoint [0,0] is dragged to [42,42]

Result should be [[42,42],[1,1],[2,0]] with snapped positions inserted in the middle

Or if last waypoint [2,0] is dragged to [42,42]

Result should be [[0,0],[1,1],[42,42]] with snapped positions inserted in the middle