in containsChunk, just initiate a region scan instead of failing to load the region file
in containsChunk, just initiate a region scan instead of failing to load the region file

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