copy-char-table is buggy

[Stephen J. Turnbull]

Olivier Galibert writes:

 > Just a heads up, I'm still working on it.  c-c-t has an "interesting"
 > handling of mirror tables, which does not seem to have much to do with
 > how they're actually used.  Plonking a dirtyfication in the
 > syntax-related if() "fixes" the old with-syntax-table bug, but the
 > real fix is to find out what the hell the semantics are supposed to be
 > and implement them.
 > 
 > Is there an access to mirror tables from lisp?  It looks like there
 > isn't, and that syntax-tables are the only user, but ICBvery easilyW.

AFAIK only Ben and maybe Yoshiki and Hrovje know anything about mirror
tables.

Also AFAIK (BTNVM) you are correct on both counts, there is no access
from Lisp, and only syntax tables use them.