Steps to reproduce

1. Create a component with the following dialog:
   my-component.yaml

    form:
     properties:
       switchable:
         $type: switchableField
         i18n: true
         field:
           $type: radioButtonGroupField
           layout: horizontal
           name: switchable
           datasource:
             $type: optionListDatasource
             options:
               - name: foo
                 value: foo
               - name: bar
                 value: bar
         itemProvider:
           $type: currentItemProvider
         forms:
           - name: foo
             properties:
               foo:
                 $type: textField
           - name: bar
             properties:
               bar:
                 $type: richTextField 

2. Create the component on a page and select foo for english (set a value on the textField) and bar for other language (set a value on the richText)
3. Save the component
4. Open the component
5. Check that for fallback locale, the foo value is properly selected
6. Switch to other language and check that the foo value remains selected instead of switching to bar

Expected results

The selected value and input for each language is properly selected

Actual results

The fallback option remains selected

Workaround

N/A

Development notes

The data is properly stored at JCR, looks like only the selection is wrong