FIX: avoid translating pre-translated placeholder

assets/javascripts/wizard/templates/components/wizard-composer-editor.hbs

@@ -1,7 +1,7 @@
 {{d-editor
   tabindex=field.tabindex
   value=composer.reply
-  placeholder=replyPlaceholder
+  placeholderTranslated=replyPlaceholder
   previewUpdated=(action "previewUpdated")
   markdownOptions=markdownOptions
   extraButtons=(action "extraButtons")