`PUT /library/custom/{id}` replaces the whole entry — the host assigns
`slot.prep = input.prep` and `slot.detect = input.detect` outright
(library/custom.rs). But `GET /library` returns a `GameEntry`, which carries
neither field, so the console builds its payload from a read model that has
already lost them. Editing a title to fix a typo silently cleared any prep/undo
commands and detection hints the entry had.
The console cannot round-trip what the read API will not tell it, so this is a
warning, not a fix: the edit form now says plainly that saving replaces the entry
and that anything configured outside the console will be cleared. The actual fix
is host-side — expose `detect` and `prep` on the library read model — and is
noted in the code where it belongs.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
enricobuehlerandClaude Opus 5
0751265105