From df9ec3141ce66a7d526689ee6db3cee23fe01593 Mon Sep 17 00:00:00 2001
From: Davide Scaini <davide.scaini@alumni.cern>
Date: Wed, 13 May 2026 22:47:42 +0200
Subject: [PATCH] Fix dragend: update waypoint through  proxy, not stale
 closure reference

---
 src/Planner.svelte | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Planner.svelte b/src/Planner.svelte
index 8b973a5..f3dd657 100644
--- a/src/Planner.svelte
+++ b/src/Planner.svelte
@@ -75,9 +75,11 @@
     const wp = { lng, lat, marker };
     marker.on('dragend', () => {
       const { lng: newLng, lat: newLat } = marker.getLngLat();
-      wp.lng = newLng;
-      wp.lat = newLat;
-      waypoints = waypoints; // trigger reactivity
+      const i = waypoints.findIndex(w => w.marker === marker);
+      if (i >= 0) {
+        waypoints[i].lng = newLng;
+        waypoints[i].lat = newLat;
+      }
       fetchRoute();
     });