bug#34763: 27.0.50; url-retrieve-synchronously misbehaves inside eldoc-documentation-function

[Eli Zaretskii]

> Cc: 34763@debbugs.gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Tue, 12 Mar 2019 22:05:59 +0200
> 
> - Evaluate the file attached to the report and do some typing, as though 
> to reproduce the first problem.
> 
> - Continue typing, pause from time to time and wait for "done" to show 
> up in the echo area. After a little while, it will stop arriving, 
> because the requests will stall for some reason.

They don't stall here, they just take more time to complete.

If you do the same from an interactive function, not from eldoc, does
the problem happen there as well?