Yes, this change is intentional.
As best as I can tell, the new test results correctly match IPC 7351
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XY file rotations don't work for advanced SMD elements
Status in PCB: Printed Circuit Board CAD package:
BGA, PGA, and all packages with pin 1 in the top centre produce
incorrect XY file rotations.
Attached patch does the following:
- Revises current rotation detection to match IPC-7351, as described
- Looks for pins "A1","B1" etc as well as "1" & "2" to handle BGAs and
- Looks for element attribute "xy-centre" which can be set to "origin"
to use the element's origin, rather than the pin centroid as the
centre reference point. Needed to sensibly handle BGAs/PGAs with a
single missing pin.
- Looks for element attribute "xy-fixed-rotation" which can be used to
force a given rotation, for when all else fails.
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