DBC22-5326: deselect map feature when reversing route on mobile

Clear the clicked feature when route reference params are removed during
a route swap, including swaps initiated from the mobile header search.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ray-oxd

src/frontend/src/Components/map/Map.js

@@ -992,6 +992,13 @@ export default function DriveBCMap(props) {
     }
   }, [filteredAdvisories]);
 
+  // DBC22-5326: clear selected feature when route swap clears reference params
+  useEffect(() => {
+    if (!referenceData?.type && clickedFeatureRef.current) {
+      resetClickedStates(null, clickedFeatureRef, updateClickedFeature);
+    }
+  }, [referenceData?.type]);
+
   // Reset search params when panel is closed
   useEffect(() => {
     if (searchParamInitialized.current) {

src/frontend/src/Components/routing/RouteSearch.js

@@ -161,6 +161,10 @@ const RouteSearch = forwardRef((props, ref) => {
 
   // Handlers
   const swapHandler = () => {
+    if (resetClickedStates) {
+      resetClickedStates();
+    }
+
     searchParams.delete('type');
     searchParams.delete('id');
     searchParams.delete('display_category');