When I use render selected zone the end result is always one extra frame at the end, after the zone.
Tried many formats with a consistent behaviour.

Anyone else have experienced this? I couldn't find anything here or in the bug tracker. I want your opinion before filing a bug report.

this is how timeline looks like. Footage is png-sequence so there shouldn't be anything strange going on there.
http://dl.dropbox.com/u/2811229/TEMP/kdenlive_zone-selection.png

And here is a render of the scene from Kdenlive (open in Kdenlive, Avidemux or Snappy to be able to step and see last frame).
http://dl.dropbox.com/u/2811229/jag_rymmer/03_111021_small.m4v