{"record":{"id":"f7b6c6fa6ab44ca1","repo":"Fission-AI/OpenSpec","slug":"spec-inputs-for-update-id-changed-while-archi","errorCode":null,"errorMessage":"Spec inputs for '${update.id}' changed while archive was preparing the preview.","messagePattern":"Spec inputs for '(.+?)' changed while archive was preparing the preview\\.","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"src/core/archive.ts","lineNumber":1452,"sourceCode":"          unaccountedContent: string[];\n          sourceFingerprint: string;\n          sourceContentFingerprint: string;\n          targetFingerprint: string;\n          targetMovableFingerprint: string;\n        }> = [];\n        let prepareError: unknown;\n        try {\n          for (const update of specUpdates) {\n            const sourceBeforeBuild = await fingerprintPath(update.source);\n            const targetBeforeBuild = await fingerprintPath(update.target);\n            const built = await buildUpdatedSpec(update, changeName!, { silent: true });\n            const sourceAfterBuild = await fingerprintPath(update.source);\n            const targetAfterBuild = await fingerprintPath(update.target);\n            if (\n              sourceBeforeBuild !== sourceAfterBuild ||\n              targetBeforeBuild !== targetAfterBuild\n            ) {\n              throw new Error(\n                `Spec inputs for '${update.id}' changed while archive was preparing the preview.`\n              );\n            }\n            prepared.push({\n              update,\n              rebuilt: built.rebuilt,\n              counts: built.counts,\n              outcome: await decideSpecOutcome(\n                update,\n                built,\n                skipValidation,\n                retirementDeclared\n              ),\n              noRequirementBlocks: built.noRequirementBlocks,\n              unaccountedContent: built.unaccountedContent,\n              sourceFingerprint: sourceAfterBuild,\n              sourceContentFingerprint: await fingerprintPortableContent(update.source),\n              targetFingerprint: targetAfterBuild,","sourceCodeStart":1434,"sourceCodeEnd":1470,"githubUrl":"https://github.com/Fission-AI/OpenSpec/blob/6926ccb18afa4ff621112813e9968334576ee11a/src/core/archive.ts#L1434-L1470","documentation":"Error \"Spec inputs for '${update.id}' changed while archive was preparing the preview.\" thrown in Fission-AI/OpenSpec.","triggerScenarios":"Thrown at src/core/archive.ts:1452 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"6926ccb18afa4ff621112813e9968334576ee11a","analyzedAt":"2026-08-25T12:29:45.729Z","schemaVersion":2},"datasetVersion":"2026-08-25T16:17:27.014Z"}