Repeated tasks on the calendar with --once should only show next occurance, not all of them

Hi, I am generating ics file from org-mode and importing into khal with

khal import -a todo --batch ~/.todo.ics

and everything works great.

Now I have reoccurring task happening every week, example from ics file would be

BEGIN:VEVENT
DTSTAMP:20230410T175402Z
UID:TS1-af74116d-3ee3-42aa-b187-02be8451b958
DTSTART;VALUE=DATE:20230417
DTEND;VALUE=DATE:20230418
RRULE:FREQ=WEEKLY;INTERVAL=1
SUMMARY:Here is some repeating task example
DESCRIPTION:Yes, description too.
CATEGORIES:todo
END:VEVENT

and khal calendar --once today 30d correctly shows task once in the 'at' list on the right, but calendar itself highlights all Mondays in the future.

Expected behavior: with --once and repeated tasks, khal should only highlight next date on the calendar, not all repeated dates in the future.

I can snap screenshot if needed but this is easy to test and replicate. Anything I can help with just let me know.

Reproduce the issue with the shown recurring VEVENT and khal calendar --once today 30d; start by tracing the calendar command's --once handling and recurring-event display path. Done means the calendar highlights only the next occurrence while the command retains its expected single entry.