[PATCH] Always use \newcommandx instead of \def

[Enrico Forestieri]

On Wed, Oct 18, 2023 at 02:05:51AM +0000, Isaac Oscar Gariano wrote:
> 
>So sorry about that, I should really have looked at the issue tracker. 
>But yes, it will probably break lots of pre-existing documents. So I've 
>uploaded a new version of my patch that is backwards compatible.
>I've added a checkbox at the bottom of Document Settings -> Math 
>Options to always use \newcommandx. The checkbox defaults to off, so 
>it's an opt in feature. Alternatively, I could modify the lyx2lyx 
>system so that files from an older format version have it off by 
>default, but new versions have it on by default (which is probably what 
>it should be).
>
>I've attached three example lyx files that try and redefine the 
>\section command; the only difference between def.lyx and new.lyx is 
>whether the checkbox is checked or not; renew.lyx shows how to 
>suecesfully do the redefinition.

Please, attach patch and examples to the bug tracker 
(https://www.lyx.org/trac/ticket/11185) so that they won't be forgotten.

-- 
Enrico