[Modern] CheckboxGroup/RadioGroup don't support inital value config

[lovelyhibabe]

Fiddle:
https://fiddle.sencha.com/#view/editor&fiddle/304u


But classic CheckboxGroup/RadioGroup do support inital value:
https://fiddle.sencha.com/#view/editor&fiddle/304v

[sentinelo]

If you set name property on each field, not on the group, your fiddle just works (also by adding simpleValue: false, to the first radiogroup).