Working on a brand new scene the editor crashes randomly for no appearing reason, I juste click on another element on scene to un-select the selected one and sometimes the editor crashes, with that i lost all what I didnt save, made me think of an auto save backup maybe good while the editor is not stable enough.. here is a bunch of crash log for the same reason, the same manipulation.
viseditor-crash 15-12-22 17-09-17.txt
viseditor-crash 15-12-22 17-38-44.txt
viseditor-crash 15-12-22 17-43-20.txt
viseditor-crash 15-12-22 17-52-20.txt