fix: correctly activate picking module in terrain picking pass

Author: thclark

modules/extensions/src/terrain/terrain-picking-pass.ts

@@ -85,10 +85,12 @@ export class TerrainPickingPass extends PickLayersPass {
   }
 
   getShaderModuleProps(layer: Layer, effects: any, otherShaderModuleProps: Record<string, any>) {
+    const base = super.getShaderModuleProps(layer, effects, otherShaderModuleProps);
     return {
-      terrain: {
-        project: otherShaderModuleProps.project
-      }
+        ...base,
+        terrain: {
+            project: otherShaderModuleProps.project
+        }
     };
   }
 }