core: !EXPERIMENTAL! 支持跨域引用题目

packages/hydrooj/src/handler/problem.ts

@@ -247,7 +247,7 @@ export class ProblemSubmitHandler extends ProblemDetailHandler {
     async get(domainId: string, pid: string | number) {
         this.response.template = 'problem_submit.html';
         const rdocs = await record
-            .getUserInProblemMulti(domainId, this.user._id, this.pdoc.docId)
+            .getUserInProblemMulti(domainId, this.user._id, pid)
             .sort({ _id: -1 })
             .limit(10)
             .toArray();