@ -442,8 +442,8 @@ export class ProblemModel {
if (!pdoc) continue;
let pid = pdoc.pid;
if (pid) {
const current = await ProblemModel.get(domainId, pid);
if (current) pid = undefined;
if (!(/^[A-Za-z]+[0-9]*$/.test(pid))) pid = undefined;
else if (await ProblemModel.get(domainId, pid)) pid = undefined;
}
const overrideContent = findOverrideContent(path.join(tmpdir, i));
const docId = await ProblemModel.add(