[Bug 2147921] Re: manifest can be wrong

[Launchpad Bug Tracker]

** Merge proposal linked:
   https://code.launchpad.net/~ubuntu-core-dev/livecd-rootfs/+git/livecd-rootfs/+merge/503545

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https://bugs.launchpad.net/bugs/2147921

Title:
  manifest can be wrong

Status in livecd-rootfs package in Ubuntu:
  Confirmed

Bug description:
  Since this MP, the manifest produced for some ISOs is wrong.
  https://code.launchpad.net/~skia/livecd-rootfs/+git/livecd-rootfs/+merge/503356

  For example:
  build: https://launchpad.net/~ubuntu-cdimage/+livefs/ubuntu/resolute/ubuntu/+build/940399
  log: https://launchpadlibrarian.net/856172835/buildlog_ubuntu_resolute_amd64_ubuntu_BUILDING.txt.gz

  This is an Ubuntu Desktop build from 20260410, and we can see the many layers produced (search for `Delta manifest` in the build log).
  The one surfaced in the artifacts is the very last one, due to the logic implemented in the MP above, and that means the `zh` layer:
  ```
  Delta manifest:
  --- /build/config/iso-dir/iso-root/casper/minimal.manifest.full	2026-04-10 06:21:52.870807314 +0000
  +++ /build/config/iso-dir/iso-root/casper/minimal.zh.manifest.full	2026-04-10 06:48:36.145883155 +0000
  ```
  This is obviously not correct, but also, what should be the correct behavior? What layer is "the right one", in a kinda generic way?

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