Any update on this bug? 

On Fri, Jan 8, 2021, at 11:08, Stefan Kangas wrote:
> "Sheng Yang" <styang@fastmail.com> writes:
> 
> > Hi Juri,
> >
> > I recently came across a regression of performance in Emacs for
> > describe bindings, which I have reported as bug#45379. After
> > bisection, the offending seems to be a commit a649034336 you pushed in
> > November 2020, to fix bug#5423. [...]
> >
> > a649034336 * bad Don't show key ranges if shadowed by different commands
> 
> BTW, the offending commit is not Juri's.  It is mine:
> 
>     Author: Stefan Kangas <stefan@marxist.se>
>     Date:   Fri Nov 13 15:28:29 2020 +0100
> 
>         Don't show key ranges if shadowed by different commands
> 
> Thanks for the bug report!
> 

Sheng Yang(杨圣), PhD candidate
Computer Science Department
University of Maryland, College Park
E-mail: styang@fastmail.com
E-mail (old but still used): yangsheng6810@gmail.com