bug#15298: 24.3.50; Background color lost when highlighting a string

[Josh]

On Fri, Dec 13, 2013 at 6:11 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: "Sebastien Vauban" <sva-news@mygooglest.com>
>> Date: Fri, 13 Dec 2013 13:50:26 +0100
>> Cc: 15298@debbugs.gnu.org
>>
>> Side question: when we observe such a word which is not highlighted as
>> we expect it, is there a way to see the list of all applied faces in the
>> order they are applied?  That'd help debugging such a problem...
>
> The problem in this case (and other similar ones) is that the face you
> expected was removed, and then another one applied to the same text.
> Removed faces are not recorded anywhere, as you might expect.

Would (faces-at-position nil :include-all) reveal the absence of the
face Sebastien was expecting to have been in effect?