[Pharo-project] RecentMessageList gets troubled when we use version

Hi Ben When I open RecentMessageList and selection sorted by first I get a DNU. I fixed it, but I after building the list is quite slow. And also this is strange because under 1.4 I get a lot of 1.3 changes. Stef findIndexOfVersionOf: aMethodReference | list timeStamp| timeStamp := aMethodReference timeStamp. list := self versionsHistoryList. list size = 1 ifTrue: [^1]. 1 to: list size - 1 do: [:i || current next | current := list at: i. next := list at: (i+1). ((current value asDateAndTime <= timeStamp asDateAndTime) & (next value asDateAndTime> timeStamp asDateAndTime)) ifTrue: [^i]]. ^list size.