Duplicate events via subscribed calendar

[webwude]

OC 8.1.3 on all-inkl.com, latest version of Calendar+

Recently I imported daily events from watched.li - now I realized that all events are doubled - each one is availabe twice as daily event.
If I download the ics file and import it manually, all events are present just once.

Is there any way to avoid it?

Steps to reproduce:

• add a new url
• import events
• refresh once - entries are doubled
  (- another refresh doesn't change anything).

Thank you and best regards.

Update: I just checked the database: even though each event has a unique eventuid this field will be ignored (two entries with the same eventuid).

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[matepate]

Same issue occures on my setup. OC version 8.1.3.

After subscribing to an online calendar (ics on http server in my case) all events are added and after the first autmatic refresh of the calendar view all events gets doubled. I've checked the ICS file twice. all events in there are unique.

Behaviour is reproduceable by removing and resubscribing to the same calendar. First all events gets added, after refresh all events get duplicated.

[VynceCook]

Same issue. If I clean the events in the database and sync again, all
events get duplicated.

[hitam4450]

same issue here as well! V: 1.1.1

[flipflopsimsommer]

can confirm, same issue: oc 8.2, calendarplus: 1.1.1