Selecting "All future instances" won't delete any event from Team Calendars

Issue Summary

When working with Team Calendars within Confluence, it is nice to keep tracking up with our teams events in our agenda. Though, when we need to cancel an event and the subsequent events from the same event, the option to delete the current and All future instances doesn't delete the events.

Steps to Reproduce

1. Create an event on Team Calendars to repeat weekly on Mon and Wed, for 20 weeks (just as an example);
2. Click over one of the events and select the Delete option;
3. Choose the second option All future instances.

Expected Results

The current and all future events will be deleted.

Actual Results

Nothing happens, though the requests in the browser console show us everything was alright.

Workaround

You can manually delete the events or select the All in the series option - this will delete all future and past events.