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Gorgious56
3f8d7165e5
DumbWallJoiner.merge cascade-deletes element2's HasOpenings via delete_ifc_object, which previously dropped every IfcOpeningElement (and any IfcDoor / IfcWindow filling) hosted by the discarded wall. Re-host each void rel onto the survivor BEFORE the delete fires, and re-apply the opening's captured world matrix via edit_object_placement so the void doesn't drift when the two walls have different placements — a PlacementRelTo swap alone would fail this when origins differ along the shared axis. Generated with the assistance of an AI coding tool.