core&ui: enhanced category selector

packages/hydrooj/src/service/layers/renderer.ts

@@ -40,7 +40,7 @@ export default (router, logger) => async (ctx: KoaContext, next) => {
         }
         for (const key in kwargs.query || {}) {
             if (query[key] instanceof ObjectID) query[key] = kwargs.query[key].toHexString();
-            else query[key] = encodeURIComponent(kwargs.query[key].toString());
+            else query[key] = kwargs.query[key].toString();
         }
         try {
             const { anchor } = args;