diff --git a/app/services/post_service.rb b/app/services/post_service.rb
index 3e77896c..4b7c2d7d 100644
--- a/app/services/post_service.rb
+++ b/app/services/post_service.rb
@@ -181,7 +181,7 @@ PostService = Struct.new(:site, :usuarie, :post, :params, keyword_init: true) do
       value = metadata.value.dup
 
       case metadata.type
-      when 'has_and_belongs_to_many'
+      when 'has_and_belongs_to_many', 'locales'
         associated_posts(value_was - value).each do |remove_post|
           remove_relation_from(remove_post[inverse_attribute], post.uuid.value)
         end
@@ -211,7 +211,6 @@ PostService = Struct.new(:site, :usuarie, :post, :params, keyword_init: true) do
         associated_posts(value).each do |add_post|
           add_relation_to(add_post[inverse_attribute], post.uuid.value)
         end
-      when 'locales'
       end
     end
 
@@ -223,6 +222,9 @@ PostService = Struct.new(:site, :usuarie, :post, :params, keyword_init: true) do
   end
 
   # @todo por qué no podemos usar nil para deshabilitar un valor?
+  # @param :metadata [MetadataTemplate]
+  # @param :value [String]
+  # @return [nil]
   def remove_relation_from(metadata, value)
     case metadata.value
     when Array then metadata.value.delete(value)
@@ -234,6 +236,9 @@ PostService = Struct.new(:site, :usuarie, :post, :params, keyword_init: true) do
   end
 
   # @todo El validador ya debería eliminar valores duplicados
+  # @param :metadata [MetadataTemplate]
+  # @param :value [String]
+  # @return [nil]
   def add_relation_to(metadata, value)
     case metadata.value
     when Array