LGTM. Do you think it would be worthwhile to mention this change in the changelog? That plugins that add overridable array ViewDataTable properties can now accept comma separated lists from query parameters? Although I originally remember this being supported by columns_to_display, so maybe it's more of a regression.
columns could be given as comma separated list. Not sure if that applied for
columns_to_display as well. I'm not sure if we should mention it in the changelog... @mattab any opinion?
Right, maybe I'm thinking about
I reckon it's not needed to mention it in this case