- fixed: The node builder did not check if all segs could be split properly.

Also removed some fudging that tried to work around this case but produced
  a broken BSP tree on other maps.



SVN r2071 (trunk)

src/r_bsp.cpp

@@ -1026,6 +1026,7 @@ void R_Subsector (subsector_t *sub)
 #endif
 
 	frontsector = sub->sector;
+	if (sub->sector == NULL) return;
 	frontsector->MoreFlags |= SECF_DRAWN;
 	count = sub->numlines;
 	line = &segs[sub->firstline];