Passing -v

gpgv: Signature made Tue May 27 11:39:13 2025 +02:00
gpgv:                using RSA key 4A3CE3CD565D7EB5C810E2B97FF3F408476CF100
gpgv: Can't check signature: Bad public key
Signing key on 4A3CE3CD565D7EB5C810E2B97FF3F408476CF100 is not bound:
gpgv:   error: No binding signature at time 2025-05-27T09:39:13Z
gpgv: because: Policy rejected non-revocation signature (PositiveCertification) 
requiring collision resistance
gpgv: because: SHA1 is not considered secure since 2013-02-01T00:00:00Z

The subkey is only signed with SHA-1 and should be signed with SHA-512,
the key owner needs to --edit-key and change expiry to resign it


For the APT issue, please open a separate bug and run

apt dist-upgrade --solver internal -o
Dir::Log::Solver=/path/to/file.edsp.xz

to create a solver dump and add it to a new bug (it may also create its
own bug report then as the solution is worse than the old solver).

This may be fixed by the APT in proposed, I don't have a handy
reproducer, my lxd image is not old enough.

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https://bugs.launchpad.net/bugs/2111790

Title:
  gpgv-sq breaks verifying signed simplestreams data

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