changed flag which caused infinite while loop. Background info: - findCellZoneTopo tries to find for all named surface intersections which side of the face is in the faceZone - i.e. it tries to make the cellZone consistent with the faceZone (to fix small problems) - this had some logic to assign the neighbour cellZone to the owner cellZone - which didn't check for the neighbour being the same value as the owner - but still set a 'changed' flag which caused the loop to never end.
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