general.css errors breaks css autoptimization

Hi,

There is something strange in the general.css file included in the Ultimate Branding plugin here:
https://www.wordpress-hebergement.fr/wp-content/plugins/ultimate-branding/ultimate-branding-files/modules/custom-admin-bar-files/css/general.css?ver=1.0

on line 94, we had on your original file:

#wpadminbar li[id^="wp-admin-bar-ub_admin_bar_"] .dashicons{
        margin: 0;
    }
    #wpadminbar li[id^="wp-admin-bar-ub_admin_bar_"]

the selector is repeated and that it does not have style attached to it which provokes some warnings on firefox and breaks some css optimization plugin (as Autoptimize, for instance).

So I fixed it by removing this second selector and it solves the problem.

Could you please remove this second useless selector declaration on a future release ?

Thanks

Regards