MagneticConstraintSet - remove and avoid a couple of pertinent deepcopies#4170

geograham wants to merge 2 commits intoFusion-Power-Plant-Framework:developFusion-Power-Plant-Framework/bluemira:developfrom

geograham:deepcopy_removal_slash_avoidancegeograham/bluemira:deepcopy_removal_slash_avoidanceCopy head branch name to clipboard