No control on authorized values for the "variable propagation" workflow variables

[fviale]

There is no control on the entered values for the workflow variables if a range or set of values is specified.
capture d ecran 2018-02-20 a 11 03 05

capture d ecran 2018-02-20 a 11 03 13

capture d ecran 2018-02-20 a 11 03 29