Spark 2.5.2 Beta 1: Ctrl-F few second freeze if input window is cleared

I cant find that JIRA ticket now. I think it was commented by Francisco Vives. Havent experienced that before, but today i have noticed that if i type something in user search input window, query is done rapidly. And i can delete some letters up to first one and it reruns query rapidly. But if i delete all and try to type again there is a few seconds freeze.

Now using MSI Online install.

Today it’‘s ok. Though i’'m now using EXE installation.

So i constantly see such problems with Spark, that sometimes one or another issue comes out, but another day it’'s gone, and then back again. Really hard to bug test and report.