bug#81564: Possible bug when binding dynamically with an existing lexical binding

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

  > >   (let ((x 2)) (defvar x) (let ((x 10)) x))

Is it ever reasonable to use defvar inside of let?
It sure seems weird.

-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)