Elementary question on richselect filtering

Webix JS
#1

Hi all,
why in the following snippet the richselect filter does not apply?

http://webix.com/snippet/efca5abb

Thank you

#2

Filters will be cleared on each popup appearance. So the only way to apply the filter is to use onBeforeShow event for the suggest:

http://webix.com/snippet/3351d6b7

#3

Ok. Thank you.