[Bug 1995790] Autopkgtest regression report (apt/2.7.3ubuntu0.1)

[Ubuntu SRU Bot]

All autopkgtests for the newly accepted apt (2.7.3ubuntu0.1) for mantic have finished running.
The following regressions have been reported in tests triggered by the package:

apport/2.27.0-0ubuntu5 (amd64)
apt/2.7.3ubuntu0.1 (armhf)
auto-apt-proxy/14.1 (arm64)
livecd-rootfs/23.10.57 (ppc64el)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/mantic/update_excuses.html#apt

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1995790

Title:
  regression: ?garbage does not work correctly in install commands

Status in apt package in Ubuntu:
  Fix Released
Status in apt source package in Jammy:
  Fix Committed
Status in apt source package in Lunar:
  Won't Fix
Status in apt source package in Mantic:
  Fix Committed
Status in apt source package in Noble:
  Fix Released

Bug description:
  [Impact]
  The '?garbage' pattern doesn't work with install/remove commands which is confusing, and the fix for it is trivial.

  [Test plan]
  Successful autopkgtest. The comprehensive test suite run as an autopkgtest has been updated in test/integration/test-apt-get-autoremove to test for the correct behavior of '?garbage' with install and remove.

  [Where problems could occur]
  You can see we had to tweak the test suite in a bunch of places because it relies on exact debug output format and because we now call "markandsweep" there's additional mark flags in the debug output. It's unlikely that this is a problem for others.

  We have not seen regressions in noble in the past 2 weeks or noble-
  proposed since 2023-11-23 (it was stuck for other reasons there),
  hence other places the code change may affect have been thoroughly
  exercised in the builders and autopkgtest runners.

  [Original bug report]
  The awesome apt has a some wonderful tips on their EXAMPLES section (printed below). The choice of name to "garbage" might not have been the best but the function is extremely useful.

  $ man apt-patterns | sed '/EXAMPLES/,/^[^ ]/!d;/^[^ ]/d'
         apt remove ?garbage
             Remove all packages that are automatically installed and no longer needed -
             same as apt autoremove

         apt purge ?config-files
             Purge all packages that only have configuration files left

         apt list '~i !~M (~slibs|~sperl|~spython)'
             List all manually-installed packages in sections matching libs, perl, or
             python.

  Lets mark a package as automatically installed, and use the examples.

  $ sudo apt-mark auto shotwell
  shotwell set to automatically installed.

  $ sudo apt remove ?garbage
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done
  The following packages were automatically installed and are no longer required:
    libraw20 shotwell shotwell-common
  Use 'sudo apt autoremove' to remove them.
  0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

  $ sudo apt autoremove
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done
  The following packages will be REMOVED:
    libraw20 shotwell shotwell-common
  0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
  After this operation, 9.806 kB disk space will be freed.
  Do you want to continue? [Y/n] N
  Abort.

  Apt-patterns works as it should everywhere else, as far as I can see,
  it works wonders with ie `apt list '~g|~c'` and many other
  applications. I used `apt purge '~g|~c'` successfully in Ubuntu 20.04
  for years, so I feel this is a regression.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: apt 2.4.8
  ProcVersionSignature: Ubuntu 5.15.0-52.58-generic 5.15.60
  Uname: Linux 5.15.0-52-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Nov  6 10:57:52 2022
  SourcePackage: apt
  UpgradeStatus: Upgraded to jammy on 2022-03-26 (224 days ago)

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