Blocks outside the world are never solid
Blocks outside the world are never solid

Fixes #2539
Frownigami1/cuberite,Frownigami1/cuberite,marvinkopf/cuberite,Schwertspize/cuberite,QUSpilPrgm/cuberite,bendl/cuberite,Frownigami1/cuberite,ionux/MCServer,QUSpilPrgm/cuberite,nounoursheureux/MCServer,tonibm19/cuberite,Fighter19/cuberite,SamOatesPlugins/cuberite,marvinkopf/cuberite,Haxi52/cuberite,tonibm19/cuberite,birkett/cuberite,kevinr/cuberite,ionux/MCServer,johnsoch/cuberite,birkett/MCServer,SamOatesPlugins/cuberite,ionux/MCServer,Haxi52/cuberite,Haxi52/cuberite,Fighter19/cuberite,mc-server/MCServer,QUSpilPrgm/cuberite,HelenaKitty/EbooMC,ionux/MCServer,HelenaKitty/EbooMC,birkett/cuberite,bendl/cuberite,birkett/MCServer,SamOatesPlugins/cuberite,kevinr/cuberite,kevinr/cuberite,Haxi52/cuberite,kevinr/cuberite,Schwertspize/cuberite,johnsoch/cuberite,Schwertspize/cuberite,marvinkopf/cuberite,bendl/cuberite,birkett/MCServer,SamOatesPlugins/cuberite,kevinr/cuberite,Schwertspize/cuberite,birkett/cuberite,Fighter19/cuberite,SamOatesPlugins/cuberite,mc-server/MCServer,nounoursheureux/MCServer,nounoursheureux/MCServer,ionux/MCServer,Frownigami1/cuberite,Altenius/cuberite,johnsoch/cuberite,tonibm19/cuberite,birkett/MCServer,QUSpilPrgm/cuberite,Fighter19/cuberite,bendl/cuberite,tonibm19/cuberite,nounoursheureux/MCServer,Altenius/cuberite,Fighter19/cuberite,Haxi52/cuberite,Altenius/cuberite,tonibm19/cuberite,nounoursheureux/MCServer,nounoursheureux/MCServer,Fighter19/cuberite,tonibm19/cuberite,marvinkopf/cuberite,Altenius/cuberite,birkett/cuberite,Schwertspize/cuberite,birkett/cuberite,mc-server/MCServer,mc-server/MCServer,QUSpilPrgm/cuberite,mc-server/MCServer,Altenius/cuberite,Frownigami1/cuberite,marvinkopf/cuberite,mc-server/MCServer,HelenaKitty/EbooMC,HelenaKitty/EbooMC,birkett/MCServer,johnsoch/cuberite,marvinkopf/cuberite,bendl/cuberite,Haxi52/cuberite,ionux/MCServer,birkett/cuberite,johnsoch/cuberite,kevinr/cuberite,QUSpilPrgm/cuberite,birkett/MCServer,HelenaKitty/EbooMC