Map tileset toogle keeps old markers and doesnt recenter map

Layout/default/Preorder/Index.php

@@ -319,7 +319,7 @@
         }
         
         console.log("renderMap");
-        renderMap();
+        renderMap(true);
       }
       
       function refreshMap() {
@@ -332,11 +332,13 @@
         }, 500);
       }
 
-      function renderMap() {
+      function renderMap(tilesetChangeOnly = false) {
         if(preorderMap) {
-          markers.forEach(function(m) {
-            preorderMap.removeLayer(m);
-          });
+          if(!tilesetChangeOnly) {
+            markers.forEach(function(m) {
+              preorderMap.removeLayer(m);
+            });
+          }
         } else {
           preorderMap = L.map('preorder-map').setView([<?=TT_PLACEHOLDER_GPS_LAT?>, <?=TT_PLACEHOLDER_GPS_LONG?>], 12);
         }
@@ -352,8 +354,10 @@
         }).addTo(preorderMap);
 
         L.MakiMarkers.accessToken = '<?=TT_MAPBOX_TILE_API_TOKEN?>';
-
-        addMarkers();
+        
+        if(!tilesetChangeOnly) {
+          addMarkers();
+        }
       }