HelloWall example: ifcRelAssociatesMaterial.RelatingMaterial is set twice?

[WindingWinter]

I found that in your HelloWall example, ifcRelAssociatesMaterial.RelatingMaterial is set twice ( at line 238 and 241).

Setting the property the second time will override ( and render ineffective) the first, isn't it? Is this just a typo, or is there a reason for this?