ui: fix problem_submit.page

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.8.37",
+  "version": "4.8.38",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",

packages/ui-default/pages/problem_submit.page.js

@@ -21,10 +21,10 @@ const page = new NamedPage(['problem_submit', 'contest_detail_problem_submit'],
     if (Object.keys(options).length > 1) {
       setOptions($('#codelang-sub-select'), options);
       $('#codelang-sub-container').show();
-      $('[name="codeLang"]').val($('#codelang-sub-select').val());
+      $('[name="lang"]').val($('#codelang-sub-select').val());
     } else {
       $('#codelang-sub-container').hide();
-      $('[name="codeLang"]').val(this.value);
+      $('[name="lang"]').val(this.value);
     }
   });
   $('#codelang-sub-select').on('change', function () {