# GitLab #47: Afficher l’explication stable d’un placement final

Original: `nessar/vac-optimizer`; GitLab Issue ID 318. Target: [#47](https://gitea.nessar.fr/nessar/vac-optimizer/issues/47).

Author: nessar (GitLab user 8). Created: 2026-08-30T18:20:14.848Z. Last source update: 2026-10-03T13:17:23.706Z.

Source state: closed; discussion locked: False.

This linked record preserves source attribution, timestamps, discussion grouping, review positions and historical diffs. Current Gitea activity is separate from the original source dates. Old CI jobs and their reports are omitted by owner decision.

## Discussions and activity

### Discussion bb53d71c22df7db52f638cf6bd85a4f839fca6de

#### Source note 1422 — nessar (GitLab user 8) — 2026-08-30T18:20:15.789801Z

system activity.

````text
mentioned in issue #48
````

### Discussion cb0c8cc6c10d292782f927789b27f327d4b83042

#### Source note 1424 — nessar (GitLab user 8) — 2026-08-30T18:20:16.255091Z

system activity.

````text
mentioned in issue #49
````

### Discussion 25c5f275a82f0dab2152898579d1af2cdbd746e2

#### Source note 1774 — nessar (GitLab user 8) — 2026-10-02T12:54:31.887545Z

````text
Completion audit — 2026-10-02

Published code freezes the submitted snapshot and exposes chronological placement explanation and provenance. However, planDetailsOpen defaults to false and the explanation disclosure is closed, whereas this ticket requires the plan explanation by default. Local commit 51978f7 changes that behaviour, but it is unpublished, and current uncommitted UI edits change the interaction again. Verify the final intended default before closure.

Evidence: reviewed issue requirements/discussions and f1f0835 (published application source; live main 57a39c81 only adds Renovate configuration). Tested an isolated checkout of the published source: 20 test files, 157/157 tests passed, including the five benchmark scenarios. Local commit 51978f7 and uncommitted edits were inspected separately and are not evidence of published completion.
````

### Discussion 1468380fb8dcd71f56c2ff3eeb16a433315606cd

#### Source note 1778 — nessar (GitLab user 8) — 2026-10-02T12:54:33.255928Z

system activity.

````text
mentioned in issue #46
````

### Discussion 1abc886e09c815fe220ffa86f8535867c3142ba4

#### Source note 1860 — nessar (GitLab user 8) — 2026-10-03T13:17:21.987006Z

````text
Implemented with $luna-verified-implement and independently verified.

Frozen submitted input and stable default plan explanations now preserve provenance, contributions, and the full obligation-first comparison while navigating final placements chronologically.

Validation: 198/198 tests across 23 files, app/spec TypeScript checks, ESLint, and production build pass. Chromium keyboard, focus-restoration, background comparison, and responsive checks at 375/768/1440 pixels pass with no page errors. Original benchmark outcomes match the pre-change baseline in all five scenarios, with and without tracing.

The implementation is in the local working tree based on 0ce33cc9d6fe7381965a9162571abe205d0b7350; no commit or push has been made.
````

## State event records

- {"close_after_error_tracking_resolve": false, "close_auto_resolve_prometheus_alert": false, "created_at": "2026-10-03T13:17:23.947846+00:00", "epic_id": null, "id": 619, "imported_from": 0, "issue_id": 318, "merge_request_id": null, "namespace_id": 38, "source_commit": null, "source_merge_request_id": null, "state": 2, "user_id": 8}