Lotus Notes 8.5.1: Undo Declining a Meeting?

In Lotus Notes 8.5.1, I ended up declining a meeting due to a earlier, conflicting meeting. About an hour after I declined the second meeting, the first one was rescheduled. So, now I want to un-decline the second one. Is there any way to do that?

IBM have a tips document that describe how to do this.

From the calendar Views panel, under Lists select Entries and Notices. Then you should be able to find the declined meeting request. Sort by an appropriate column to find the request (Last Modified worked for me since it was a recent request).

Once you've found the declined request you can open it and accept it.

If you open the declined meeting from the 'all calendar entries' view, you can choose to accept it, cancelling the decline.