Clear selection when changing maps

src/hooks/useMapSelection.tsx

@@ -32,6 +32,7 @@ function useMapSelection(
 
   const active = selectedToolId === "select";
 
+  // Remove selection when changing tools
   useEffect(() => {
     if (!active) {
       setSelection(null);
@@ -39,6 +40,12 @@ function useMapSelection(
     }
   }, [active]);
 
+  // Remove selection when changing maps
+  useEffect(() => {
+    setSelection(null);
+    setIsSelectionMenuOpen(false);
+  }, [map]);
+
   function handleSelectionDragStart() {
     setIsSelectionDragging(true);
   }