[Bug 2054908] [NEW] gnupg is pulling in gpg-wks-server which pulls in postfix

[Jeremy Bícha]

Public bug reported:

Example 1
----
I did a sudo apt dist-upgrade today on my developer machine running Ubuntu Desktop 24.04 LTS and it surprisingly pulled in postfix.

I did not built this into a full reproducible test case because I found
another test case…

Example 2
----
munin's autopkgtests are now failing because postfix and gpg-wks-server is now unexpectedly being installed.

https://autopkgtest.ubuntu.com/packages/munin/noble/amd64

Other Info
----
gnupg2's changelog indicates that there was an attempt to avoid this misbehavior by having gnupg only Suggest gpg-wks-server. In fact, there is **nothing** in Ubuntu that Depends or Recommends gpg-wks-server.

Notably, gnupg has
Suggests: gpg-wks-server (<< 2.4.4-2ubuntu7.1~), gpg-wks-server (>= 2.4.4-2ubuntu7)

I don't recall ever seeing strict versioned Suggests before so it's my
wild guess that apt does not strict handle versioned Suggests in the
expected way.

As a workaround, try dropping the versions from gnupg's Suggests.

But the true fix may be in apt.

I added a munin bug task as a pointer in case anyone wonder's about the
autopkgtest regression but I don't believe munin needs any changes.

** Affects: apt (Ubuntu)
     Importance: High
         Status: New

** Affects: gnupg2 (Ubuntu)
     Importance: High
         Status: New

** Affects: munin (Ubuntu)
     Importance: Undecided
         Status: Triaged


** Tags: noble update-excuse

** Also affects: apt (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: apt (Ubuntu)
   Importance: Undecided => High

** Also affects: munin (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: munin (Ubuntu)
       Status: New => Triaged

** Tags added: update-excuse

** Description changed:

  Example 1
  ----
  I did a sudo apt dist-upgrade today on my developer machine running Ubuntu Desktop 24.04 LTS and it surprisingly pulled in postfix.
  
  I did not built this into a full reproducible test case because I found
  another test case…
  
  Example 2
  ----
  munin's autopkgtests are now failing because postfix and gpg-wks-server is now unexpectedly being installed.
  
  https://autopkgtest.ubuntu.com/packages/munin/noble/amd64
  
  Other Info
  ----
  gnupg2's changelog indicates that there was an attempt to avoid this misbehavior by having gnupg only Suggest gpg-wks-server. In fact, there is **nothing** in Ubuntu that Depends or Recommends gpg-wks-server.
  
  Notably, gnupg has
  Suggests: gpg-wks-server (<< 2.4.4-2ubuntu7.1~), gpg-wks-server (>= 2.4.4-2ubuntu7)
  
  I don't recall ever seeing versioned Suggests before so it's my wild
- guess that maybe apt does not handle versioned Suggests in the expected
- way.
+ guess that apt does not handle versioned Suggests in the expected way.
  
- As a workaround, try dropping the versions from the Suggests.
+ As a workaround, try dropping the versions from gnupg's Suggests.
  
- But the ultimate fix may be in apt.
+ But the true fix may be in apt.
+ 
+ I added a munin bug task as a pointer in case anyone wonder's about the
+ autopkgtest regression but I don't believe munin needs any changes.

** Description changed:

  Example 1
  ----
  I did a sudo apt dist-upgrade today on my developer machine running Ubuntu Desktop 24.04 LTS and it surprisingly pulled in postfix.
  
  I did not built this into a full reproducible test case because I found
  another test case…
  
  Example 2
  ----
  munin's autopkgtests are now failing because postfix and gpg-wks-server is now unexpectedly being installed.
  
  https://autopkgtest.ubuntu.com/packages/munin/noble/amd64
  
  Other Info
  ----
  gnupg2's changelog indicates that there was an attempt to avoid this misbehavior by having gnupg only Suggest gpg-wks-server. In fact, there is **nothing** in Ubuntu that Depends or Recommends gpg-wks-server.
  
  Notably, gnupg has
  Suggests: gpg-wks-server (<< 2.4.4-2ubuntu7.1~), gpg-wks-server (>= 2.4.4-2ubuntu7)
  
- I don't recall ever seeing versioned Suggests before so it's my wild
- guess that apt does not handle versioned Suggests in the expected way.
+ I don't recall ever seeing strict versioned Suggests before so it's my
+ wild guess that apt does not strict handle versioned Suggests in the
+ expected way.
  
  As a workaround, try dropping the versions from gnupg's Suggests.
  
  But the true fix may be in apt.
  
  I added a munin bug task as a pointer in case anyone wonder's about the
  autopkgtest regression but I don't believe munin needs any changes.

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https://bugs.launchpad.net/bugs/2054908

Title:
  gnupg is pulling in gpg-wks-server which pulls in postfix

Status in apt package in Ubuntu:
  New
Status in gnupg2 package in Ubuntu:
  New
Status in munin package in Ubuntu:
  Triaged

Bug description:
  Example 1
  ----
  I did a sudo apt dist-upgrade today on my developer machine running Ubuntu Desktop 24.04 LTS and it surprisingly pulled in postfix.

  I did not built this into a full reproducible test case because I
  found another test case…

  Example 2
  ----
  munin's autopkgtests are now failing because postfix and gpg-wks-server is now unexpectedly being installed.

  https://autopkgtest.ubuntu.com/packages/munin/noble/amd64

  Other Info
  ----
  gnupg2's changelog indicates that there was an attempt to avoid this misbehavior by having gnupg only Suggest gpg-wks-server. In fact, there is **nothing** in Ubuntu that Depends or Recommends gpg-wks-server.

  Notably, gnupg has
  Suggests: gpg-wks-server (<< 2.4.4-2ubuntu7.1~), gpg-wks-server (>= 2.4.4-2ubuntu7)

  I don't recall ever seeing strict versioned Suggests before so it's my
  wild guess that apt does not strict handle versioned Suggests in the
  expected way.

  As a workaround, try dropping the versions from gnupg's Suggests.

  But the true fix may be in apt.

  I added a munin bug task as a pointer in case anyone wonder's about
  the autopkgtest regression but I don't believe munin needs any
  changes.

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