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bug#39529: 28.0.50; Metahelp does not contain help text


From: Eli Zaretskii
Subject: bug#39529: 28.0.50; Metahelp does not contain help text
Date: Sun, 16 Feb 2020 17:35:43 +0200

> Cc: address@hidden, address@hidden
> From: Paul Eggert <address@hidden>
> Date: Sat, 15 Feb 2020 15:25:44 -0800
> 
> > I suspect the sxhash changes on Jan 7.  This problem started happening
> > in that day's build.
> 
> Right you are. The problem was Emacs was using a hash table to unify 
> identical 
> Lisp compiled objects when purecopying them, even though their doc strings 
> were 
> not set up yet (and so were 0 placeholders that always compared equal). 
> Formerly 
> this bug was masked because sxhash simply returned the objects' hashed 
> addresses, but the January 7 changes unveiled the bug. I install the attached 
> patch to fix the problem.

Thanks, the problem is gone now.





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