Steps to reproduce:

1. Create a custom tag with choices attribute:

   custom_tags:
       factbox:
           template: '@ezdesign/custom_tag/factbox.html.twig'
           icon: '/bundles/factbox/img/icons.svg'
           is_inline: false
           attributes:
               options:
                   type: choice
                   choices:
                       - option1
                       - option2
                   default_value: option1
                   required: true
   

2. Create translations for choice labels:

   ezrichtext.custom_tags.factbox.attributes.options.choices.option1.label: 'Option 1'
   ezrichtext.custom_tags.factbox.attributes.options.choices.option2.label: 'Option 2'
   

3. Open OE and insert the custom tag

Expected result:

Choice label translations will be shown

Actual result:

Choice values are shown instead of translated labels