FR32_Unpad broken for GET /piece

[snadrus]

Checklist

• This is not a question or a support request. If you have any Curio related questions, please ask in the discussion forum.
• This is not a new feature request. If it is, please file a feature request instead.
• This is not an enhancement request. If it is, please file a improvement suggestion instead.
• I have searched on the issue tracker and the discussion forum, and there is no existing related issue or discussion.
• I am running the Latest release, or the most recent RC(release candidate) for the upcoming release or the dev branch(master), or have an issue updating to any of these.
• I did not make any code changes to curio.

Curio component

• PoRep Pipeline
• Snap Deals
• Market
• IPNI provider
• Curio UI
• Other

Curio Version

latest

Describe the Bug

https://filecoinproject.slack.com/archives/C06LF5YP8S3/p1762819406877469
FR32 Unpad seems to provide incorrect data on occasion, which makes GET /piece on certain pieces return slightly bad data.

Logging Information

N/A

Repo Steps

Serve the CAR in that chat and get the problem piece from it.

[parkan]

this is fixed, aye?

[Reiers]

Fixed by #830 (fr32 bugfix, merged 2025-12-11).