Travel lined sketch isn't saved or loaded properly

[peteruithoven]

Sketches that start with a travel (straight) line aren't saved or loaded properly.
You can draw these, with the mouse by clicking in the draw area instead of dragging. It's should also be possible on a touchscreen by clicking with one finger, holding it there and then clicking somewhere else with another finger.
When a travel line is added after a dragged piece there is no problem.