{"record":{"id":"9ab71f32b230064a","repo":"BigPizzaV3/CodexPlusPlus","slug":"canvas-user-9ab71f","errorCode":null,"errorMessage":"历史消息所属轮次不匹配","messagePattern":"历史消息所属轮次不匹配","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"tools/conversation-canvas/public/canvas.user.js","lineNumber":437,"sourceCode":"    if(cached&&turn.status==='completed')parsed=cached;\n    else{\n      const partial=turn.status==='completed'?await cache.get(`${key}:partial`):null;\n      parsed=partial?.messages?.slice()||[];let itemCursor=partial?.cursor??null,limit=32;const cursors=new Set();\n      do{\n        signal?.throwIfAborted();\n        if(cursors.has(itemCursor))throw Error('历史消息分页游标重复');\n        let page;\n        for(;;){\n          try{page=await send('thread/items/list',{threadId,turnId:turn.id,cursor:itemCursor,limit,sortDirection:'asc'});break;}\n          catch(error){\n            if(limit>1&&/decoded message length too large/i.test(error.message)){limit=Math.max(1,Math.floor(limit/2));continue;}\n            throw error;\n          }\n        }\n        if(!Array.isArray(page?.data))throw Error('历史消息接口返回格式无效');\n        cursors.add(itemCursor);\n        for(const row of page.data){\n          if(row.turnId!=null&&row.turnId!==turn.id)throw Error('历史消息所属轮次不匹配');\n          const item=row.item??row;\n          if(!['userMessage','agentMessage'].includes(item.type))continue;\n          if(typeof item.id!=='string')throw Error('历史消息缺少稳定 ID');\n          const role=item.type==='userMessage'?'user':'assistant';\n          const content=role==='user'?(item.content??[]):[{text:item.text??''}];\n          const message=parseMessage({type:'response_item',payload:{type:'message',id:item.id,role,phase:role==='assistant'?(item.phase??'final_answer'):'',content}},item.id);\n          if(message)parsed.push({...message,turnId:turn.id,turnStatus:turn.status});\n        }\n        itemCursor=page.nextCursor??null;\n        onProgress(`正在读取历史 ${index+1}/${turns.length} · 已读 ${parsed.length} 条消息…`);\n        if(turn.status==='completed'&&itemCursor!==null)await cache.set(`${key}:partial`,{messages:parsed,cursor:itemCursor});\n      }while(itemCursor!==null);\n      if(turn.status==='completed'){await cache.set(key,parsed);await cache.delete(`${key}:partial`);}\n    }\n    // Older completed-turn caches contain text and IDs but no turn metadata.\n    // The current directory and cache key provide the authoritative owner.\n    for(const message of parsed)if(!seen.has(message.id)){seen.add(message.id);messages.push({...message,turnId:turn.id,turnStatus:turn.status});}\n  }","sourceCodeStart":419,"sourceCodeEnd":455,"githubUrl":"https://github.com/BigPizzaV3/CodexPlusPlus/blob/b1ed92e5e4a2d74095d4b8db5af43cef7acba9c6/tools/conversation-canvas/public/canvas.user.js#L419-L455","documentation":"Every item row returned for a turn is expected to belong to the requested turn; when a row carries a turnId that is non-null and different from turn.id, the script throws because mixing items across turns would corrupt the reconstructed history order.","triggerScenarios":"'thread/items/list' with threadId+turnId returns rows tagged with another turn's id — server-side filter regression, cursor bleed-over across turns, or a schema change where row.turnId semantics changed.","commonSituations":"Codex backend update altering items-list filtering; paginated projection inconsistency when the thread is being written concurrently; reusing stale cached pages across turns.","solutions":["Update canvas.user.js to match the installed Codex version.","Stop other sessions writing to the thread, reload, and retry history import.","Clear the partial cache (`${key}:partial`) and re-run pagination from scratch.","Soften the check: skip mismatched rows with a warning instead of aborting the whole import."],"exampleFix":"// before\nif(row.turnId!=null&&row.turnId!==turn.id)throw Error('历史消息所属轮次不匹配');\n// after\nif(row.turnId!=null&&row.turnId!==turn.id){console.warn('skip foreign row',row.turnId,turn.id);continue;}","handlingStrategy":"validation","validationCode":"const foreign=page.data.filter(r=>r?.turnId!=null&&r.turnId!==turn.id);\nif(foreign.length)console.warn('rows from other turns will be skipped',foreign.length);","typeGuard":"const rowBelongsToTurn=(row,turnId)=>row?.turnId==null||row.turnId===turnId;","tryCatchPattern":"try{await importTurnItems(turn);}catch(e){if(e.message==='历史消息所属轮次不匹配'){return importTurnItems(turn,{skipForeignRows:true});}throw e;}","preventionTips":["Never import history concurrently with active writes to the thread","Filter rows by turnId client-side instead of trusting server filters","Clear cached partial pages when switching turns","Report persistent cross-turn leakage to the Codex maintainers"],"tags":["data-integrity","pagination","history-import"],"backgroundTag":"internal-invariant-violation","analyzedSha":"b1ed92e5e4a2d74095d4b8db5af43cef7acba9c6","analyzedAt":"2026-09-19T23:35:21.129Z","contentChangedAt":"2026-09-19T23:35:21.129Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}