Use a js-class instead of an id for moderator-comment-actions

app/assets/javascripts/moderator_comment.js.coffee

@@ -4,4 +4,4 @@ App.ModeratorComments =
     $("##{id} .comment-body:first").addClass("faded")
 
   hide_moderator_actions: (id) ->
-    $("##{id} #moderator-comment-actions:first").hide()
+    $("##{id} .js-moderator-comment-actions").hide()

app/views/comments/_actions.html.erb

@@ -1,8 +1,8 @@
-<span id="moderator-comment-actions">
   &nbsp;|&nbsp;
   <%= link_to t("admin.actions.hide").capitalize, hide_moderation_comment_path(comment),
               method: :put, remote: true, data: { confirm: t('admin.actions.confirm') } %>
   <% unless comment.user.hidden? %>
+<span class='js-moderation-actions'>
     &nbsp;|&nbsp;
     <%= link_to t("admin.actions.hide_author").capitalize, hide_moderation_user_path(comment.user_id, debate_id: @debate.id),
                 method: :put, data: { confirm: t('admin.actions.confirm') } %>