FlowSOMSubset does not subset CV values

[stu-blair]

When I build a FlowSOM object on multiple files, then take a subset of it for one file using FlowSOMSubset, then call GetMFIs on that subset, the MFIs are returned just for the subset. But when I do the same thing using GetCVs, the values are unchanged.

Looking at the FlowSOMSubset code, I can see that the $map$medianValues get specifically updated, but I see no similar code for $map$cvValues

I think this is a bug, but I may be misunderstanding something.