bug#46990: 28.0.50; popup menu not navigable via arrow keys on lucid build

[Eli Zaretskii]

> Date: Thu, 11 Mar 2021 14:25:52 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: 46990@debbugs.gnu.org
> 
> > This could point to the portable dumper as the culprit (more accurately, 
> > something we do wrongly when producing the pdmp file),
> 
> No, because this behavior predates the portable dumper.  In the previous 
> test I went back to revision 5b464a9cea of the trunk three years ago; now 
> I went a bit further and the same behavior is also present in 62e170072e 
> six years ago.

OK, thanks.