I received an Outlook invitation, which I accepted. The default reminder time was set to 15 minutes, but I wanted it at 5 minutes. I edited the calendar entry, modifying the reminder under the "Reminder" tab. I clicked "OK". A pop-up informed me that I was not the organizer, and I said "OK".

I then say a pop-up from the notification area that my "e-mail was sent". I then received the invite I had just edited, with the "From" as the invitation originator. This happened on two different occasions.

Changing the reminder time of an event I was not the originator of should not resend the invitation.

Reproducible: Always

Steps to Reproduce:
1. Receive an invitation (the ones I have are from Outlook users)
2. Accept the invitation
3. Change the reminder notification time
4. Click OK to accept the change, and the "not originator" notice.

Actual Results:  
1. The reminder is changed in the calendar.
2. The invitation is resent to the entire participants list, as the invitation originator.

The re-sent invitation shows up in the e-mail inbox; the invitation body says: "This invitation has been updated by the organizer XXX", where "XXX" is the person (not me) who sent the original.


Expected Results:  
Changing the reminder notification should not re-send an invitation, especially for invitations I was not the originator for. Based on the pop-up, KOrganizer understands that I was not the originator.


Since my office mostly uses Outlook, I have the following options in KMail settingsenabled:
  "Send Invitations in the mail body" 
  "Exchange-compatible invitation naming"
  "Outlook compatible invitation reply comments"
  "Show invitation update differences in the Outlook style"