Version: 1.2.5 (using KDE 3.5.8) Installed from: Ubuntu Packages When moving a single incidence (23-April) of a weekly (Wednesday) recurring event to a different day (Tuesday 15-April), the original event (23-April) does not get removed from the calendar, so in effect what happened was a copy, not a move. Then, upon deleting the new event (15-April) and selected "this time only", all the recursions before that date (15-April) are deleted from calendar!
More details: 1) Opening the events that still exist in the calendar (events on and after 16-April), I see that in Recurrence -> Exceptions that the exceptions from previous months are still in place. For instance, on 12-March the event occurred one hour early. Sure enough, when I check 12-March in the calendar, I see that the 12-March event still is shown on the calendar. 2) I had suspected that recreating the event exactly as it was, on it's first occurrence, would merge itself with the existing entries and exceptions. Unfortunately, this was not the case.
I can reproduce this bug with a slightly different behaviour on trunk r865573. Steps to reproduce: (1) Add a new weekly recurring event (2) Move one of the single events to a different day (3) All of the single events prior to the moved event vanish from the calendar.
This bug has only been reported for versions before 4.14, which have been unsupported for at least two years now. Can anyone tell if this bug still present? If noone confirms this bug for a Framework-based version of korganizer (version 5.0 or later, as part of KDE Applications 15.08 or later), it gets closed in about three months.
Just as announced in my last comment, I close this bug. If you encounter it again in a recent version (at least 5.0 aka 15.08), please open a new one unless it already exists. Thank you for all your input.