Facets searchbox widget doesn't work when multiple facets with this widget are shown

Guess patches go into the 3.x branch first? Either way— this was needed to fix Searchable lists even without a second one being enabled, for me.

The above patches didn’t work for me. Attached is my attempt, which works well for me and also makes the code much saner to look at. For instance, it avoids using $facetsWidgetSearchbox inside the event handler, which I suspect as the main problem. Also it avoids usingthe jQuery.next() function, which seems to me to be an unacceptable level of reliance on the HTML structure.
Unfortunately, I think it won’t be possible without at least some reliance on the HTML structure – in my patch, I relied on the fact that the <input> field is a direct child of the wrapper that contains all the relevant elements for the facet. Templates where this is not the case would still break the functionality. (But they would have been broken without this patch, too, as far as I can see, so it’s at least not a regression.)

Relying on some ancestor element with a certain CSS class being the wrapper for the facet would probably be preferrable, but not sure if we can rely on that, either. Anyways, would be trivial to adept the patch accordingly, if you think that would make more sense: just use $context = $input.closest('.wrapper-class') instead of $context = $input.parent();.

Anyways, everyone please give the attached patch a try, especially if the previous ones didn’t work for you.

@mlncn: If multiple people have tested the patch for 2.x already and it’s marked RTBC, then I don’t think switching the version makes much sense. I’ll let the maintainers decide on this.

Thank you, Thomas!
The patch that you supplied in #12 works for me (using the currently released version 2.0.7).

Considering there haven't been any new releases in the past three months, including this patch in the upcoming release could be a valuable opportunity.

Thanks, maintainers!

Committed to both 2.x and 3.x