{"format_version":1,"model_id":"nvidia/Nemotron-3_5-Lightning","provenance":"live","recorded_at":"2026-10-11T22:48:01.519Z","request":{"body":{"chat_template_kwargs":{"enable_thinking":false},"max_tokens":8192,"messages":[{"content":"You write a pattern card that describes one fixed bug from public source-fix information.\nYou are given the source links, repository, date, licence, a short diff excerpt, the source issue text and a shape confirmation.\n\nRules:\n- bug_class is exactly one of the listed values.\n- mechanism is one sentence and names no library or framework.\n- runtime_dependence.reason says which of the seven levers apply, which are absent and which are unverified.\n- runtime_dependence.levers gives each of the seven levers one state: apply, absent or unverified (the input does not show whether it applies). The levers:\n  - hidden_runtime_state: the bug depends on state that exists only while the code runs.\n  - distance_between_symptom_and_cause: the symptom shows up far from the code that causes it.\n  - plausible_wrong_static_fix: reading the code alone suggests a fix that looks right but is wrong.\n  - path_ambiguity: several code paths could produce the symptom, and only running it shows which one does.\n  - ordering_or_concurrency: the bug depends on the order or timing of events.\n  - magnitude_visible_only_at_runtime: how wrong the result is shows only when the code runs.\n  - external_side_effect_semantics: the bug depends on how an outside system behaves when it is called.\n- Copy id, provenance and shape from the input; they are checked by code.\n- Do not invent tests, links or APIs that the input does not show.\nAnswer with JSON that matches the schema.","role":"system"},{"content":"Source-fix information:\n{\n  \"source_links\": [\n    \"https://github.com/umami-software/umami/pull/4112\",\n    \"https://github.com/umami-software/umami/commit/e6f3f3b4b40a490d5cb050471baa0999366dab2a\"\n  ],\n  \"repository\": \"https://github.com/umami-software/umami\",\n  \"date\": \"2026-03-25\",\n  \"license\": \"MIT\",\n  \"diff_excerpt\": \"diff --git a/src/app/(main)/websites/[websiteId]/(reports)/revenue/RevenuePage.tsx b/src/app/(main)/websites/[websiteId]/(reports)/revenue/RevenuePage.tsx\\nindex 3e429c1..4dc19e0 100644\\n--- a/src/app/(main)/websites/[websiteId]/(reports)/revenue/RevenuePage.tsx\\n+++ b/src/app/(main)/websites/[websiteId]/(reports)/revenue/RevenuePage.tsx\\n@@ -1,13 +1,14 @@\\n 'use client';\\n import { Column } from '@umami/react-zen';\\n import { WebsiteControls } from '@/app/(main)/websites/[websiteId]/WebsiteControls';\\n-import { useDateRange } from '@/components/hooks';\\n+import { useDateRange, useTimezone } from '@/components/hooks';\\n import { Revenue } from './Revenue';\\n \\n export function RevenuePage({ websiteId }: { websiteId: string }) {\\n+  const { timezone } = useTimezone();\\n   const {\\n     dateRange: { startDate, endDate, unit },\\n-  } = useDateRange();\\n+  } = useDateRange({ timezone });\\n \\n   return (\\n     <Column gap>\",\n  \"issue_text\": \"Pull request title: \\\"fix: use settings timezone in revenue chart date range\\\"\\n\\nPull request description, quoted:\\n## Summary\\n\\nFixes #4107\\n\\nThe revenue chart was using the browser's **local timezone** instead of the timezone configured in Umami settings. This caused:\\n- Chart X-axis to display timestamps based on local PC time\\n- Header stats (total, average, transactions) to use the settings timezone  \\n- A visible mismatch: header showed 2 transactions while chart showed only 1 data point (as described in the issue)\\n\\n## Root Cause\\n\\n`RevenuePage` called `useDateRange()` without a timezone argument, so `parseDateRange()` fell back to the browser's local time when computing `startDate`/`endDate`:\\n\\n```ts\\n// Before (no timezone → uses browser local TZ)\\nconst { dateRange: { startDate, endDate, unit } } = useDateRange();\\n```\\n\\nCompare with `EventsChart`, which correctly passes the configured timezone:\\n\\n```ts\\nconst { timezone } = useTimezone();\\nconst { dateRange: { startDate, endDate, unit } } = useDateRange({ timezone });\\n```\\n\\n## Fix\\n\\nMirror the `EventsChart` pattern in `RevenuePage`:\\n\\n```ts\\nconst { timezone } = useTimezone();\\nconst { dateRange: { startDate, endDate, unit } } = useDateRange({ timezone });\\n```\\n\\nThis ensures the date range boundaries are computed in the user's configured timezone, matching the server-side timezone used for the stats.\\n\\n## Changed Files\\n\\n- `src/app/(main)/websites/[websiteId]/(reports)/revenue/RevenuePage.tsx` — 3-line change\",\n  \"confirmation\": {\n    \"card_id\": \"card-dt-1.tz-arg-umami-4112\",\n    \"shape_id\": \"DT-1.tz-arg\",\n    \"rules_matched\": [\n      \"dt-1.tz-arg.source\"\n    ],\n    \"matched_lines\": [\n      \"-  } = useDateRange();\",\n      \"+  } = useDateRange({ timezone });\"\n    ]\n  }\n}","role":"user"}],"model":"nvidia/Nemotron-3_5-Lightning","response_format":{"json_schema":{"name":"response","schema":{"$schema":"http://json-schema.org/draft-07/schema#","additionalProperties":false,"properties":{"apis":{"items":{"minLength":1,"type":"string"},"type":"array"},"bug_class":{"enum":["time_and_date","data_validation","permissions","async_ordering_and_races","caching_and_stale_state","configuration_and_environment","ui_state_and_hydration","api_contract"],"type":"string"},"fault_shape":{"minLength":1,"type":"string"},"fidelity_tier":{"enum":["A","B","C"],"type":"string"},"id":{"minLength":1,"type":"string"},"mechanism":{"minLength":1,"type":"string"},"provenance":{"additionalProperties":false,"properties":{"date":{"format":"date","pattern":"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))$","type":"string"},"license":{"minLength":1,"type":"string"},"repository":{"minLength":1,"type":"string"},"source_links":{"items":{"format":"uri","type":"string"},"minItems":1,"type":"array"}},"required":["source_links","repository","date","license"],"type":"object"},"references":{"additionalProperties":false,"properties":{"diff_excerpt":{"type":"string"},"failing_tests":{"items":{"minLength":1,"type":"string"},"type":"array"}},"required":["diff_excerpt","failing_tests"],"type":"object"},"runtime_dependence":{"additionalProperties":false,"properties":{"levers":{"additionalProperties":false,"properties":{"distance_between_symptom_and_cause":{"enum":["apply","absent","unverified"],"type":"string"},"external_side_effect_semantics":{"enum":["apply","absent","unverified"],"type":"string"},"hidden_runtime_state":{"enum":["apply","absent","unverified"],"type":"string"},"magnitude_visible_only_at_runtime":{"enum":["apply","absent","unverified"],"type":"string"},"ordering_or_concurrency":{"enum":["apply","absent","unverified"],"type":"string"},"path_ambiguity":{"enum":["apply","absent","unverified"],"type":"string"},"plausible_wrong_static_fix":{"enum":["apply","absent","unverified"],"type":"string"}},"required":["hidden_runtime_state","distance_between_symptom_and_cause","plausible_wrong_static_fix","path_ambiguity","ordering_or_concurrency","magnitude_visible_only_at_runtime","external_side_effect_semantics"],"type":"object"},"reason":{"minLength":1,"type":"string"},"value":{"enum":["yes","no","unknown"],"type":"string"}},"required":["value","reason","levers"],"type":"object"},"shape":{"additionalProperties":false,"properties":{"matched_lines":{"items":{"type":"string"},"type":"array"},"rules_matched":{"items":{"minLength":1,"type":"string"},"type":"array"},"shape_id":{"minLength":1,"type":"string"}},"required":["shape_id","rules_matched","matched_lines"],"type":"object"},"symptom":{"minLength":1,"type":"string"},"trigger":{"minLength":1,"type":"string"}},"required":["id","provenance","bug_class","mechanism","shape","fault_shape","trigger","symptom","apis","runtime_dependence","fidelity_tier","references"],"type":"object"},"strict":true},"type":"json_schema"}}},"request_sha256":"89108acce5830645b99bdc5079a312838e8a41524d9b0b98f74ee6d42610fcbd","response":{"body":"{\"id\":\"chatcmpl-4e2f124f\",\"choices\":[{\"finish_reason\":\"stop\",\"index\":0,\"logprobs\":null,\"message\":{\"content\":\"{\\\"id\\\": \\\"card-dt-1.tz-arg-umami-4112\\\", \\\"provenance\\\": {\\\"source_links\\\": [\\\"https://github.com/umami-software/umami/pull/4112\\\", \\\"https://github.com/umami-software/umami/commit/e6f3f3b4b40a490d5cb050471baa0999366dab2a\\\"], \\\"repository\\\": \\\"https://github.com/umami-software/umami\\\", \\\"date\\\": \\\"2026-03-25\\\", \\\"license\\\": \\\"MIT\\\"}, \\\"bug_class\\\": \\\"time_and_date\\\", \\\"mechanism\\\": \\\"RevenuePage called useDateRange without a timezone argument, so parseDateRange used the browser's local timezone instead of the configured settings timezone, causing the chart axis to display timestamps in local time while header stats used the settings timezone.\\\", \\\"shape\\\": {\\\"shape_id\\\": \\\"DT-1.tz-arg\\\", \\\"rules_matched\\\": [\\\"dt-1.tz-arg.source\\\"], \\\"matched_lines\\\": [\\\"-  } = useDateRange();\\\", \\\"+  } = useDateRange({ timezone });\\\"]}, \\\"fault_shape\\\": \\\"DT-1.tz-arg\\\", \\\"trigger\\\": \\\"useDateRange() without timezone argument causes parseDateRange to fall back to browser local timezone\\\", \\\"symptom\\\": \\\"Chart X-axis timestamps and header stats use different timezones, causing a mismatch\\\", \\\"apis\\\": [], \\\"runtime_dependence\\\": {\\\"value\\\": \\\"unknown\\\", \\\"reason\\\": \\\"Hidden runtime state (the configured timezone setting) is only available at runtime via useTimezone; distance between symptom and cause is one file apart (header vs chart); plausible wrong static fix (omit timezone argument appears correct but produces mismatch); path ambiguity not present; ordering or concurrency not relevant; magnitude visible only at runtime when chart and header are compared; external side-effect semantics not relevant\\\", \\\"levers\\\": {\\\"hidden_runtime_state\\\": \\\"apply\\\", \\\"distance_between_symptom_and_cause\\\": \\\"apply\\\", \\\"plausible_wrong_static_fix\\\": \\\"apply\\\", \\\"path_ambiguity\\\": \\\"absent\\\", \\\"ordering_or_concurrency\\\": 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string }) {\\\\\\\\n+  const { timezone } = useTimezone();\\\\\\\\n   const {\\\\\\\\n     dateRange: { startDate, endDate, unit },\\\\\\\\n-  } = useDateRange();\\\\\\\\n+  } = useDateRange({ timezone });\\\\\\\\n \\\\\\\\n   return (\\\\\\\\n     <Column gap>\\\", \\\"failing_tests\\\": 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