judge: fix objective question

packages/hydrojudge/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@hydrooj/hydrojudge",
     "bin": "bin/hydrojudge.js",
-    "version": "3.1.21",
+    "version": "3.1.22",
     "main": "package.json",
     "author": "undefined <i@undefined.moe>",
     "repository": "https://github.com/hydro-dev/Hydro.git",

packages/hydrojudge/src/task.ts

@@ -118,7 +118,7 @@ export class JudgeTask {
                 isSelfSubmission: this.meta.problemOwner === this.request.uid,
                 key: md5(`${this.source}/${getConfig('secret')}`),
                 lang: this.lang,
-                langConfig: this.session.getLang(this.lang),
+                langConfig: this.request.config.type === 'objective' ? null : this.session.getLang(this.lang),
             },
         );
         this.stat.judge = new Date();