Steps to reproduce the issue

1. open "tags" component and create tags simular to following:
   йцукен
   йцукенг
   йцукенгш
   фывапрол
   фывапролдж
   фывапр
   ячсмитьб
   ячсми
   ячсмитьбю.
   qwertyuiop
   qwerty
   qwert
   asdfghjkl
   asdfgfgh
   zxcvbnm,.
   zxcvbn
2. go to article editor and in tags selector, try to type 3 first chars from non-latin language tags.

Expected result

smart search displays list of tags, which has 3 first chars in common.

Actual result

smart search drops list of found tags after 1 sec, it doesn't work for latin tags.

System information (as much as possible)

any system, tried even on 90 mins Joomla demo version.

Additional comments

I wasn't able to find what caused the issue, but after removing ajax-chosen.min.js from media/jui/js issue disappear, obviously other functionalities too.
I had the issue a year ago, there was a topic related to this issue regarding arab chars, cannot find it now. It was solved by changing timeout. After upgrade nothing works.