Delete Calendar Invite w/o Response?

I think I saw a few people had a similiar issue, but there were no responses to those. I'm hoping things have changed...😉

So this is my issue: I have my iPhone 4S running iOS 6 synced to my work Exchange server. When I receive a meeting invitation, I accept it on my computer. The invitation remains on my iPhone, however, and I am unable to delete it or acknowledge it somehow unless I Accept/Decline/Maybe again. I'd rather not have to respond twice to a single meeting invitation. I have no option to delete the Calendar invitation on my iPhone.

With iOS5, the meeting invitation remained after I accepted on the computer, but it would disappear after I opened the invitation on my iPhone. Now, it doesn't disappear, so I believe I will have to eventually start scrolling through all of these old invitations.

Anyone have any experience with this and might have some input?