fix: remove fallback code if we're on the default locale

Author: trodrigues

lib/entities/locale.js

@@ -36,9 +36,15 @@ function createLocaleApi (http) {
       // delete some properties which are returned by the server but shouldn't
       // be sent back.
       const locale = this
+      // for the default locale, we can't send the fallback code back or we get an error
+      if (locale.default) {
+        delete locale.fallback_code
+      } else {
+        // temporary fix due to property naming weirdness
+        locale.fallbackCode = locale.fallback_code
+        delete locale.fallback_code
+      }
       delete locale.default
-      locale.fallbackCode = locale.fallback_code
-      delete locale.fallback_code
       return createUpdateEntity({
         http: http,
         entityPath: 'locales',