Rename fieldname in `report` returned by `fit_sipm_wl`?

In the SiPM optimization fit routine, one field in the `report` is called `a_grid_wl_sg` which looks like a left-over from the `aoe_optimization`. Should this be renamed or will we keep it like this? https://github.com/legend-exp/LegendSpecFits.jl/blob/391ed7e2bb527ceadb363cf833ffa32411c46ac1/src/sipm_filter_optimization.jl#L84