Reset default value of radio group when value is removed

[vsgoulart]

Describe the Bug

When we have a default value in a radio group and that value is removed from the options the default value remains even the option is not possible anymore

Steps to Reproduce

1. Create a radio group
2. Add some options values
3. Set a default value
4. Remove the default value from options
5. The default value remains even though the option doesn't exist anymore

Expected Behavior

The default value should reset if the option does not exist anymore

Additional information

Reported by SUPPORT-25619