Fixed crash caused by wrong coordinate systems in heavy portal setup. 
Fixed crash caused by wrong coordinate systems in heavy portal setup. 


git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@30731 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS