bug#59271: 29.0.50; Wrong tab-bar height at startup

[Po Lu]

Gabriel <gabriel376@hotmail.com> writes:

> Description:
> The tab-bar height is wrong (bigger than expected) at startup. It only
> happens when tab-bar is enabled in init.el. After emacs is loaded, the
> tab-bar height can be "fixed" by toggling the tab-bar.
>
> A 'git bisect' indicates that the commit
> 52d4c98cec0901ef5cc1c55d5b3b33ac9d9c519f introduced this bug.
>  
> Steps:
> 1) Use the following in init.el:
> (tab-bar-mode 1)
> 2) Run emacs
>    - tab-bar is shown, notice the height
> 3) M-x tab-bar-mode RET (hide tab-bar)
> 4) M-x tab-bar-mode RET (show tab-bar)
>    - tab-bar height is smaller than it was at startup
>
> The video below demonstrates the issue:

What is printed when you run:

  xrdb -query

on your system?