bug#23205: 25.0.92; sort-tests is flaky

[Philipp Stephani]

On Mon, Apr 4, 2016 at 4:34 AM Eli Zaretskii <eliz@gnu.org> wrote:

> From: Philipp Stephani <phst@google.com>
> Date: Sun, 03 Apr 2016 21:00:50 +0000
> Cc: 23205@debbugs.gnu.org
>
>  Do you sometimes see such failures if you just run the test once?
>
> I don't know, what's the difference between running it once and running it 1000 times? Since it fails randomly,
> it could fail in any iteration, including the first one.

You assume that it fails randomly.  I would like to know if that is
true.  It could be that the failures only happen if the test is run
repeatedly, couldn't it?

It also happens when I delete sort-tests.elc before each iteration.

Interestingly `sort' uses the stable mergesort. 

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