bug#51390: 29.0.50; repeat-mode: Fails to repeat keys in global-map(?)

[Juri Linkov <juri@linkov.net>]

close 51390 28.0.60
thanks

>> This feature of checking the last key could be enabled per every keymap
>> using symbol properties.  Then you can disable it for one keymap,
>> while keeping enabled for all remaining keymaps.
>
> That indeed sounds like a good solution to the problem.  Thanks!

This is fixed now, so your original case is supported,
as well as more cases reported in e.g.
https://lists.gnu.org/archive/html/emacs-devel/2021-04/msg00083.html
https://lists.gnu.org/archive/html/emacs-devel/2021-08/msg00962.html

The behavior can be customized by the new user option 'repeat-check-key'.
Also a command can have a symbol property with the same name
and two values: 't' checks the key when the variable is nil,
and 'no' doesn't check the key when the variable is t.

A special property 'no' is necessary instead of using 'nil',
because 'get' can't distinguish when the property has the
value 'nil' and when there is no property set on the symbol.
Also there is no function to delete a property from a plist,
so every package invents own wheel, e.g. map--plist-delete.
org-plist-delete-all, svg--plist-delete...