[DateRange] The input loses focus

[svetq]

Describe the bug
When using ChangeDetectionStrategy.OnPush and typing in the start date of the input, then the input is blurred as soon as a single digit is entered.

To Reproduce
Please check the following example:

https://stackblitz.com/edit/angular-kendo-daterange-lwg9bi?file=app/app.component.ts

Enter 2/22/2 with the keyboard for the start input date and notice how the input is blurred.

[svetq]

also reported in 1496496

[ipeshev]

https://stackblitz.com/edit/angular-kfrur1?file=app/app.component.ts
While the other datetime inputs are not losing focus , they are closing opened calendar ( timechart ) while typing new value, when the value is updated ( on a partial ).

Daterange from other hand is not focusing the calendar when start/end date input is activated which is different from the other inputs.

[gkarapeev]

Fix available in v5.0.0