editor: Fix problems with always-on radio buttons RE datachange event
editor: Fix problems with always-on radio buttons RE datachange event

Credit goes to Ed Hager for the initial query-based fix.
I've added logic for keeping dirty data consistent.

maier49/dgrid,dylans/dgrid,kfranqueiro/dgrid,maier49/dgrid,kfranqueiro/dgrid,dylans/dgrid,maier49/dgrid,kfranqueiro/dgrid,dylans/dgrid