--- Operating System, Graphics card ---
linux mint 14 x64 , 570GTX nv313.19

--- Blender version with error, and version that worked ---
error get on 53964

--- Short description of error ---
1) firstly then a baked in 'full render' mode image in viewer was without margin corner, but in over modes (as AO) all (was looking) right
2) baked some count of times and in 'full render' where was no margining edges, so i save result in disk as png and save scene
3) when i look in saved texture it has only margin edges image on black background where x_x
4) load scene and try to rerender but now it apply margin edges on black after processing finish
5) tried to open scene on 2.63.x and get Crush of blender with console messages:

read blend: /home/dron09/Документы/Lvl_consept2.blend
Error, region type missing in - name:"Clip", id:20
Error, region type missing in - name:"Clip", id:20
Error, region type missing in - name:"Clip", id:20
Segmentation fault

--- Steps for others to reproduce the error (preferably based on attached .blend file) ---
1) load attached scene 2) select terrain 3) push bake button 4) look to image viewer for result