Neighbors' ends to the reversed wall are not modified but the two lines
wall.setWallAtStart(wallAtEnd);
wall.setWallAtEnd(wallAtStart);reset the reference to reversed wall stored by neighbor walls, that's why the other lines are necessary.
By the way, I see from your profile that you come from Bulgaria.
Did you try the Bulgarian version available in CVS and in the current Beta version?
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Emmanuel Puybaret, Sweet Home 3D creator
