Refactoring: fix rendering of new roads, generated by a split

assets/layers/split_road/split_road.json

@@ -0,0 +1,21 @@
+{
+  "id": "split_road",
+  "description": "Layer rendering the way to split in the 'splitRoadWizard'. This one is used instead of the variable rendering by the themes themselves, as they might not always be very visible",
+  "minzoom": 1,
+  "source": "special",
+  "name": null,
+  "title": null,
+  "mapRendering": [
+    {
+      "location": [
+        "point"
+      ],
+      "icon": "bug",
+      "iconSize": "30,30,center"
+    },
+    {
+      "width": "8",
+      "color": "black"
+    }
+  ]
+}

assets/themes/cyclestreets/cyclestreets.json

@@ -379,7 +379,7 @@
   ],
   "overrideAll": {
     "allowSplit": true,
-    "tagRenderings+": [
+    "+tagRenderings": [
       {
         "id": "is_cyclestreet",
         "question": {
@@ -723,4 +723,4 @@
       }
     ]
   }
-}
+}