Our wall-framing takeoff reads a DXF floor plan and builds the wall list from it. Until now it had only seen DXFs we or a sister tool generated. This run put four real door symbols (from LibreCAD's open plan library) on a door layer in a made-up 40 x 28 ft house.
A real symbol is not a line across the opening. It is a short jamb piece at each side of the wall plus a swing arc per leaf. The reader took each jamb fragment as its own door: one double door became several "doors" 4 to 9 inches wide, and the header and king-stud counts followed.
The fix joins two jambs into one opening when a door-layer arc matches the gap between them (one leaf) or half of it (two leaves). All four symbols now give one door each: 131, 71 and 81 inches wide, measured jamb edge to jamb edge, so the width runs a few inches over the rough opening. The output says so. Wide pieces that are already openings are never joined, which an earlier version of the rule broke on our own fixtures before the guard was added.
This is still a symbol library, not an architect's plan, and the README says that. The test keeps made-up numbers with the same structure.