[NTG-context] Multipass Datasets doesn't work

Hello, the simple example from the mailing-list doesn't work with the latest beta. I think the core-dat.lua is corrupted (function commands.datasetvariable) \definedataset[test-1] \definedataset[test-2] \starttext \setdataset[test-1][x=Value X 1,y=Value Y 1] \setdataset[test-1][x=Value X 2,y=Value Y 2] \setdataset[test-2][a][name=Ben Lee User,job=Manager] \setdataset[test-2][b][title=TeX by Topic] \startlines \datasetvariable{test-1}{1}{x}:\datasetvariable{test-1}{1}{y} \datasetvariable{test-1}{2}{x}:\datasetvariable{test-1}{2}{y} \stoplines Name: \datasetvariable{test-2}{a}{name} \par Job: \datasetvariable{test-2}{a}{job} \par \stoptext Kind regards, Martin