I've filed a bug on this but in the future it's helpful if you give me more than just a link to a screenshot; did the events display normally at first and then started duplicating, did it print all of them at once, etc. Anything to help give us a general narrative sense of what happened will make it a lot easier to troubleshoot the problem at it's source :)
hehe. us developers are the worst bug reporters. sorry.
there's not much more to add to this though. it consistently shows the same event duplicated multiple times. no amount of reloading or fiddling changes it.