bug#38038: 27.0.50; Emacs freezes opening tabs.

[Ergus via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

AFAIK this issue is still there.

On Thu, Nov 07, 2019 at 04:01:02PM +0200, Eli Zaretskii wrote:
>> From: Juri Linkov <juri@linkov.net>
>> Date: Sun, 03 Nov 2019 00:20:30 +0200
>> Cc: spacibba@aol.com
>>
>> > Hi when using emacs in gui I can't open a new tab if I add these lines
>> > to my config:
>> >
>> > (set-face-attribute 'tab-bar-tab nil
>> >        :weight 'ultra-bold :underline t)
>>
>> Does Emacs freeze when you set the 'default' face to ultra-bold underline?
>>
>> (set-face-attribute 'default nil
>>   :weight 'ultra-bold :underline t)
>>
>> When I tried, it signals '(wrong-type-argument bufferp nil)'
>> in "command-error-default-function" and goes into infinite loop.
>> I have no idea what is wrong.
>
>Is this still an issue, or were these hangs solved?  If this is still
>an issue, do you need help in debugging it?
>
>What else remains to be done with tabs before we can starte pretesting
>Emacs 27?
>
>Thanks.