Clicking a Note (or any pin) in Route mode used to:
1. fire the canvas click handler → drop a waypoint at the note's spot
2. only THEN run the pin's own click/dblclick handlers
So a single click on a note added a stray waypoint, and a double-click added two and may not have reliably reached the dblclick handler. Edit-via-dblclick therefore felt broken.
Fix: every interactive pin (note, text label, route waypoint, pull marker) now stops 'click' propagation explicitly. Click and dblclick on a pin no longer affect the active tool. Drag detection bumped to a 3px threshold and now only persists history when the pin actually moved.
florian.berthold
48c401909e