On Sun, Oct 22, 2017 at 12:04:01AM -0000, Julian Andres Klode wrote:
> Because let's face it: If A suggests B, B provides or modifies
> functionality for A, so removing B might just break your use case of A.

That is absolutely not apt's responsibility to handle, when the admin has
never indicated to the package manager that they want to keep B; and is
nothing when weighed against the asymmetry that causes package cruft to be
kept around on every user's systems after upgrade.

A user who discovers after autoremovals that she wants B installed can
install B from the archive.  But a user who just wants no-longer-needed
packages to be autoremoved has no reasonable way to get this - because
that's what 'autoremove' is supposed to imply already, but it doesn't
actually deliver unless you track down this non-obvious apt setting and
tweak your config.

If 'apt install A=1; apt install A=2; apt autoremove --purge' gives
different results than 'apt install A=2; apt autoremove --purge', then that
is a bug.  Sometimes it's a bug in a package.  In this case, it's a bug in
the package manager.

The current behavior is not a sensible default.

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https://bugs.launchpad.net/bugs/1725861

Title:
  APT::AutoRemove::SuggestsImportant "false" should be the default

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