bug#20834: 25.0.50; install-autoremove cycle with the tablist package

[Tassilo Horn <tsdh@gnu.org>]

Artur Malabarba <bruce.connor.am@gmail.com> writes:

Ok, there's a new package version for `names'.  So here's what I get
with your recipe.

> Could you try the following?
>
> 1. Delete `tablist`.

Done (or rather I've uninstalled it previously in another emacs
instance).

> 2. Hit `U` to mark packages for upgrade.

I can upgrade names-20150611.636 to the recent version 20150617.359.

> 3. Does `tablist` get marked for installation?

No.

Now I went through all installed packages and their dependencies, and
none of them requires tablist.  So that suggests that when doing
`package-autoremove' the removed packages might still be left over in
some variable which forces a reinstall with the next upgrade.  This
doesn't seem to happen when I explicitly remove a package using `U'
followed by `x'.

Bye,
Tassilo