[Bug 1982404] [NEW] update-manager prints to stderr "Unable to find a valid PPA candidate URL."

[Luís Cunha dos Reis Infante da Câmara]

Public bug reported:

When running update-manager with a PPA enabled (specifically
https://launchpad.net/~luis220413/+archive/ubuntu/security-updates),
trying to view changes for the updates from the PPA and installing all
updates, it prints to stderr "Unable to find a valid PPA candidate URL."
twice.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: update-manager 1:20.04.10.10
ProcVersionSignature: Ubuntu 5.15.0-41.44~20.04.1-generic 5.15.39
Uname: Linux 5.15.0-41-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 20 17:54:51 2022
InstallationDate: Installed on 2022-04-26 (85 days ago)
InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal third-party-packages

** Description changed:

- When running update-manager with a PPA enabled (specifically ), trying
- to view changes for the updates from the PPA and installing all updates,
- it prints to stderr "Unable to find a valid PPA candidate URL." twice.
+ When running update-manager with a PPA enabled (specifically
+ https://launchpad.net/~luis220413/+archive/ubuntu/security-updates),
+ trying to view changes for the updates from the PPA and installing all
+ updates, it prints to stderr "Unable to find a valid PPA candidate URL."
+ twice.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: update-manager 1:20.04.10.10
  ProcVersionSignature: Ubuntu 5.15.0-41.44~20.04.1-generic 5.15.39
  Uname: Linux 5.15.0-41-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Jul 20 17:54:51 2022
  InstallationDate: Installed on 2022-04-26 (85 days ago)
  InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1982404

Title:
  update-manager prints to stderr "Unable to find a valid PPA candidate
  URL."

Status in update-manager package in Ubuntu:
  New

Bug description:
  When running update-manager with a PPA enabled (specifically
  https://launchpad.net/~luis220413/+archive/ubuntu/security-updates),
  trying to view changes for the updates from the PPA and installing all
  updates, it prints to stderr "Unable to find a valid PPA candidate
  URL." twice.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: update-manager 1:20.04.10.10
  ProcVersionSignature: Ubuntu 5.15.0-41.44~20.04.1-generic 5.15.39
  Uname: Linux 5.15.0-41-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Jul 20 17:54:51 2022
  InstallationDate: Installed on 2022-04-26 (85 days ago)
  InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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