are not 'autojoining' type. For some reason these walls do not retain
some of their properties (e.g. blocks view). The code should probably
also be tweeked to handle single arch wall objects better (or at least
for simple walls - escape the wall joining routine and not to send out
all those log errors for non-existant arches).
Walls for random maps should not have smoothing either...
git-svn-id: svn://svn.code.sf.net/p/crossfire/code/trunk/maps@2335 282e977c-c81d-0410-88c4-b93c2d0d6712
07292180d0