Steps to reproduce

1.  Define a component as the following

   form:
     properties:
       - name: text
         i18n: true
         $type: textField
       - name: switchMe
         $type: switchableField
         i18n: true
         field:
           $type: radioButtonGroupField
           required: true
           layout: horizontal
           defaultValue: internal
           datasource:
             $type: optionListDatasource
             options:
               - name: internal
                 value: internal
               - name: external
                 value: external
         itemProvider:
           $type: jcrChildNodeProvider
         forms:
           - name: internal
             properties:
               internal:
                 $type: pageLinkField
                 required: true
           - name: external
             properties:
               external:
                 $type: textField
                 required: true 

1.  Create it on a site which has multiple languages enabled
2. Switch to locale which is not default one
3. Select one option on switchMe field
4. Clic on submit
5. Check the dialog doesn't close but no error is shown
6. Move to other language and check the error of required field is printed

Expected results

Some kind of advice is shown to let the editor know he must fulfill the switchMe field for all languages as far as it is required

Actual results

The error is shown only if the editor switch to other language

Workaround

N/A

Development notes

N/A