Bug report

DatePicker Calendar is not visible on Safari on iPad when programmatically set from readonly(true) to readonly(false)

Reproduction of the problem
Dojo: https://dojo.telerik.com/oVoyUSoH

Current behavior
1: Open above Dojo on iPad Safari
2: Click Edit
3: Open DatePicker Calendar

The calendar dates are missing

Expected/desired behavior
Calendar dates shall be visible

Environment
Kendo UI version:  2020.2.617
Browser: [ ipadOS 13.6 Safari  ]