MultiList filter on server side

Hi,

**Affected Projects**
React / All

I'm using MultiList with huge lists (more than 10,000 terms), and the `showFilter` is really useful. However, when I use it combined to `showLoadMore`, I need to click multiple times the `Load More` button to get all results as filter is applied on local data already get from the server.

I would prefer the filter to take place on server side in this case.

This behavior might be activated on demand as not all lists need it.
I can't see how to interact with the component to create this behavior on top of the existing component.

Thanks in advance for your help.