ensure dummy zero chunk is completely dark before lighting, or else light spills in from the dummy chunk
ensure dummy zero chunk is completely dark before lighting, or else light spills in from the dummy chunk

codewarrior0/pymclevel,arruda/pymclevel,mcedit/pymclevel,ahh2131/mchisel,ahh2131/mchisel,mcedit/pymclevel,arruda/pymclevel,codewarrior0/pymclevel