recurrence: no category set on auto-created events

[Hoffi1]

Played with different user rights and found curious result:
A normal user (Registered) with add/edit/publish events right via JEM group created recurring event on frontend. Created (first) event was fine but all other events have no category set.

@jojo12: Could you please try to reproduce this with 1.9.6 pre-release?
I think this should be fixed, if possible before 1.9.6 release. (I will do my best)

[Hoffi1]

I think I found the cause:
In JemHelper::cleanup() recurring events are generated. When such an event is successfully stored cats_event_relations must be updated. But this query is limited to users with "core.manage" authorization - This is wrong. If event could be stored relations must be stored too, independant of user rights.

[Hoffi1]

I think the intention was to print error message to managers only. So it should be fixed now.

[jojo12]

I tested after changing (tested before always as superuser). All events in recurrence set have category.

[JKoelman]

@Hoffi1 it indeed had to do with showing the error-message but you're right that the code had to change.

[Hoffi1]

Available on master so close it now.