bug#16035: 24.3.50; Custom isearch broken on trunk (e.g. change-log-mode)

[Stefan Monnier]

> folding.el performs such initialization in `folding-isearch-hook-function':
>
>           (funcall (symbol-function 'set)
>                    'overriding-terminal-local-map folding-isearch-mode-map)

Maybe folding.el is out of luck and will need to be updated.

An alternative is to make isearch record the
overriding-terminal-local-map that was set "at the beginning" (which
should be folding-isearch-mode-map for the folding-isearch and
isearch-mode-map in the normal isearch), and then
change the check to

     ((not (eq overriding-terminal-local-map
               isearch-saved-overriding-local-map))

But depending on how folding-isearch-mode-map is defined this may not be
sufficient, and changes to folding.el will be needed.


        Stefan