Two iterators were added to the code. Both of these iterate through connection fields of given projection. The base iterator iterates through all projections fields whereas the dervied Mask iterator iterates only over connection fields corresponding to the unmasked positions. All code in cf.py was changed to use these iterators instead of directly accessing _cfs
Two iterators were added to the code. Both of these iterate through connection fields of given projection. The base iterator iterates through all projections fields whereas the dervied Mask iterator iterates only over connection fields corresponding to the unmasked positions. All code in cf.py was changed to use these iterators instead of directly accessing _cfs


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