Edition-level `authors` silently corrupted (likely by 2014 author merges) — field is invisible and uneditable in the UI

### Problem

Edition-level `authors` links can be silently corrupted (in this case, apparently by 2014 author-merge operations) and the UI provides no way to see or fix the field — the book page and edit form both show only the *work's* authors. The bad data is invisible on openlibrary.org but is served to all API and bulk-dump consumers, who inherit it into downstream apps and datasets.

Concrete case — edition [OL18241658M](https://openlibrary.org/books/OL18241658M) (*Shiloh*, ISBN 0689316143). In [the edition JSON](https://openlibrary.org/books/OL18241658M.json):

- `authors` → [`/authors/OL27452A`](https://openlibrary.org/authors/OL27452A.json) = **Jean Little** ❌
- the same record's `by_statement` = `"by Phyllis Reynolds Naylor."`
- its work [OL13489W](https://openlibrary.org/works/OL13489W.json) correctly links [OL22786A](https://openlibrary.org/authors/OL22786A.json) = **Phyllis Reynolds Naylor** ✅

Version history shows the link was correct from the 2008 import, then rewritten twice in 2014 — consistent with collateral damage from author merges (a misfired merge rewrites *every* edition that pointed at the merged record, so this is unlikely to be a single record):

| revision | date | edition `authors` |
|---|---|---|
| [v4](https://openlibrary.org/books/OL18241658M.json?v=4) | 2010-08-18 | OL22786A (Naylor) ✅ |
| [v5](https://openlibrary.org/books/OL18241658M.json?v=5) | 2014-05-17 | OL1122551A (Paul Galdone) ❌ |
| [v6](https://openlibrary.org/books/OL18241658M.json?v=6) | 2014-06-27 | OL27452A (Jean Little) ❌ — unchanged for 11 years since |

Potential scope: the class is machine-detectable from the dump alone (edition `authors` disagreeing with the work's `authors`; here it even contradicts its own `by_statement`). Cross-referencing a 3,000-edition sample against external sources (Wikidata, LoC, HathiTrust, K10plus) with a data-quality tool I've been building, ~1.3% of editions flagged author disagreements; this record is the first hand-verified as edition-link corruption. Happy to run a broader scan and report back.

(Same record: `publish_date` "1996" also contradicts its own LC classification `PZ7.N24 Sg 1991` and external sources, which agree on 1991.)

### Reproducing the bug

1. Open https://openlibrary.org/books/OL18241658M.json → `authors` is `/authors/OL27452A` (Jean Little), while `by_statement` says "by Phyllis Reynolds Naylor."
2. Open https://openlibrary.org/books/OL18241658M/Shiloh → the page shows "Phyllis Reynolds Naylor" (the work's author), so the error is invisible on the site.
3. Open the edition's edit form → there is no field exposing the edition-level `authors` link, so it can't be corrected through the UI.

* Expected behavior: the edition's author link matches the work/`by_statement` (Phyllis Reynolds Naylor), or at minimum is visible and editable so librarians can fix it.
* Actual behavior: the edition serves Jean Little to API/dump consumers; the website hides the field and the edit form can't touch it.

### Context

- Browser (Chrome, Safari, Firefox, etc): n/a — data-layer issue, reproducible via public JSON API
- OS (Windows, Mac, etc): n/a
- Logged in (Y/N): N (visible logged out)
- Environment (prod, dev, local): prod

### Breakdown

Implementation Details (for maintainers)

Possible directions (happy to leave the call to maintainers):
1. Repair this record: edition `authors` → OL22786A (and `publish_date` → 1991).
2. Size the problem: scan the editions dump for edition-vs-work author disagreements.
3. Longer term: either expose edition-level `authors` in the edit UI, or declare work authors canonical and sync/clear stale edition-level links so API/dump consumers aren't served data the site itself ignores.

#### Requirements Checklist
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#### Related files

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Start with the edition JSON for OL18241658M, its work JSON, the public book page, and the edition edit form to trace where edition-level authors are stored, served, and hidden. Compare this with the editions dump and author-merge behavior before choosing a scope; done requires an agreed repair, scan, or UI/data-model change with tests or validation for the selected path.

Written by the indexing model from the issue text.