Seth Foster 1636abd669 AAP-71844 Fix rrule fast-forward across DST boundaries (#16407) ...

Fix rrule fast-forward producing wrong occurrences across DST boundaries

The UTC round-trip in _fast_forward_rrule shifts the dtstart's local
hour when the original and fast-forwarded times are in different DST
periods. Since dateutil generates HOURLY occurrences by stepping in
local time, the shifted hour changes the set of reachable hours. With
BYHOUR constraints this causes a ValueError crash; without BYHOUR,
occurrences are silently shifted by 1 hour.

Fix by performing all arithmetic in the dtstart's original timezone.
Python aware-datetime subtraction already computes absolute elapsed
time regardless of timezone, so the UTC conversion was unnecessary
for correctness and actively harmful during fall-back ambiguity.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-21 10:54:42 -04:00

..

api

fix import for refactored method (#16394)

2026-04-15 10:47:17 -04:00

conf

Enhance OpenAPI schema with AI descriptions and fix method names (#16228)

2026-01-21 16:53:19 -03:00

locale

Working on running spellcheck on everything ahead of merging the shellcheck/code check CI addition. (#13453)

2023-03-01 10:19:00 -03:00

main

AAP-71844 Fix rrule fast-forward across DST boundaries (#16407)

2026-04-21 10:54:42 -04:00

playbooks

Fix jinja2 error from newer ansible versions (#16356)

2026-03-17 13:36:33 -04:00

settings

Add feature flag for OIDC workload identity credential types (#16348)

2026-03-18 22:40:33 -04:00

static

Add generic font family

2026-02-03 16:12:00 -05:00

templates

Remove redunant role attribute

2026-02-03 16:12:00 -05:00

ui

Apply new rules from black update (#16232)

2026-01-19 12:58:07 -05:00

__init__.py

[4.6][Backport][Feature] feat: Manage Django Settings with Dynaconf (#6910)

2025-04-15 15:17:16 -04:00

asgi.py

Assorted renaming and string changes

2021-04-30 14:32:05 -04:00

devonly.py

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resource_api.py

Move to Runtime Platform Flags (#16148)

2025-11-25 10:20:04 -05:00

urls.py

Reorder URLs so that Django debug toolbar can work (#16352)

2026-04-03 10:22:21 -04:00

wsgi.py

Apply new rules from black update (#16232)

2026-01-19 12:58:07 -05:00