Invalid dirty flag when Editing Scheduler Recurring Events

[eyupyusein]

Bug report

When selecting "Edit current occurrence" and then "Edit the Series" button, the Scheduler event dirty flag is triggered

Reproduction of the problem

1. Open a Scheduler demo or this dojo:
   https://dojo.telerik.com/ErOFeBuq

2. Edit an event and click on the "Edit current occurence" button

3. Cancel

4. Edit an event and click on the "Edit series" button

5. The console will show that the dirty flag was triggered:

Expected/desired behavior

When you do the same with only one of the buttons, the flag remains clean: