World|Sector: Skip self-referencing lines in the void when mapping sector clusters
A particularly nasty mapping error where sectors comprised of only self-referencing lines exist in the void cannot and should not have their visual planes mapped (e.g., ksutra.wad MAP05 sector #137).
World|Sector: Skip self-referencing lines in the void when mapping sector clusters
A particularly nasty mapping error where sectors comprised of only
self-referencing lines exist in the void cannot and should not have
their visual planes mapped (e.g., ksutra.wad MAP05 sector #137).