Autogenerate migrations fails on projects with dashed locale names

I was testing the auto-generation feature for migrations and I found an issue on projects that have a dashed locale (i.e. "en-US", "pt-br", ...)

On a project with a normal locale (it), everything runs smoothly:

datocms migrations:new 'add visibility switch to categories' --autogenerate=add-switch-to-category

Writing "migrations/1667488257_addVisibilitySwitchToCategories.ts"... done

On a project with a dashed locale instead, it hangs (in this example the locale is "en-US"):

datocms migrations:new 'add visibility switch to categories' --autogenerate=add-switch-to-category

Writing "migrations/1667487675_addVisibilitySwitchToCategories.ts"... !
    SyntaxError: ',' expected. (9:318)
       7 |
       8 |         console.log("Create Boolean field \"Show in menu?\" (`show_in_menu`) in model \"Category\" (`category`)")
    >  9 |         newFields["3643874"] = await client.fields.create("461463", { label: "Show in menu?", field_type: "boolean", api_key: "show_in_menu", hint: "Check this if
    you want this category to appear on the sidebar menu", localized: true, appearance: { addons: [], editor: "boolean", parameters: {} }, default_value: { en-US: true } });
         |
                                                                                                                                                            ^
      10 |
      11 |         console.log("Update existing fields/fieldsets")
      12 |

Perhaps the locale needs to be escaped...?

Cheers!

datocms / cli

Autogenerate migrations fails on projects with dashed locale names #6