core: 修复部分域rp计算异常的问题

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.28.48",
+    "version": "2.28.49",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",

packages/hydrooj/src/script/rating.ts

@@ -123,7 +123,7 @@ async function runInDomain(id: string, isSub: boolean, report: Function) {
     if (info) info.union.push(id);
     const udict: ND = {};
     const deltaudict: ND = {};
-    const domainId = info ? { $in: info.union } : { $exists: false };
+    const domainId = info ? { $in: info.union } : id;
     const dudocs = unionWith([
         ...await domain.getMultiUserInDomain(id).toArray(),
         ...await domain.getMultiUserInDomain('', { domainId }).toArray(),