Remove margins from empty block widgets

[gabbsmo]

Description

I am conditionally displaying widgets. In my case it is per language, using WPML. According to them, plugin developers cannot fully remove all markup for block widgets and will leave an empty widget container.

I belive there are other plugins that allows for conditionally showing or hiding widgets that would have the same issue

My suggestion is that the margins that are added to widgets by the theme should not be applied if the widget is :empty.

To clarify, this is only a problem with the modern block widgets. Classic widgets are fine.

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References

Example markup of empty block widget: <aside id="block-2" class="widget inner-padding widget_block"></aside>
WPML ticket: https://wpml.org/forums/topic/a-empty-div-element-are-rendered-for-widgets-that-are-disabled-for-language/