DP3 accepts non-existing msin.weightcolumn when solving
Created by: rvweeren
I noticed that msin.weightcolumn can point to a column that does not exist in the MS and DP3 still runs a solve with that (without complaining). Not sure what precisely happens in this case, whether it then defaults to WEIGHT_SPECTRUM or assumes all weights are 1.0? I think the correct behavior is to give an error saying the weightcolumn does not exist.