eliminar retornos de carro

app/models/metadata_markdown_content.rb

@@ -12,6 +12,6 @@ class MetadataMarkdownContent < MetadataContent
   # markdown y se eliminan autolinks.  Mejor es deshabilitar la
   # generación SAFE de CommonMark en la configuración del sitio.
   def sanitize(string)
-    string
+    string.tr("\r", '')
   end
 end

app/models/metadata_template.rb

@@ -99,7 +99,7 @@ MetadataTemplate = Struct.new(:site, :document, :name, :label, :type,
     return if string.nil?
     return string unless string.is_a? String
 
-    sanitizer.sanitize(string,
+    sanitizer.sanitize(string.tr("\r", ''),
                        tags: allowed_tags,
                        attributes: allowed_attributes + %w[data-trix-attachment],
                        scrubber: scrubber).strip.html_safe