get the multi filter labels feature to work on merge request, also escape…

app/assets/javascripts/dispatcher.js.coffee

@@ -58,6 +58,7 @@ class Dispatcher
       when 'projects:merge_requests:index'
         shortcut_handler = new ShortcutsNavigation()
         MergeRequests.init()
+        Issues.init()
       when 'dashboard:activity'
         new Activities()
       when 'dashboard:projects:starred'

app/assets/javascripts/issues.js.coffee

@@ -21,7 +21,7 @@
     Issue.labelRow = _.template(
       '<% _.each(labels, function(label){ %>
         <span class="label-row">
-          <a href="#"><span class="label color-label has-tooltip" style="background-color: <%= label.color %>; color: #FFFFFF" title="<%= label.description %>" data-container="body"><%= label.title %></span></a>
+          <a href="#"><span class="label color-label has-tooltip" style="background-color: <%= label.color %>; color: #FFFFFF" title="<%= _.escape(label.description) %>" data-container="body"><%= _.escape(label.title) %></span></a>
         </span>
       <% }); %>'
     )

app/assets/javascripts/merge_requests.js.coffee

@@ -3,7 +3,6 @@
 #
 @MergeRequests =
   init: ->
-    $('.filtered-labels').hide()
     MergeRequests.initSearch()
 
   # Make sure we trigger ajax request only after user stop typing

app/controllers/projects/merge_requests_controller.rb

@@ -38,13 +38,14 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     @merge_requests = @merge_requests.page(params[:page])
     @merge_requests = @merge_requests.preload(:target_project)
 
-    @label = @project.labels.find_by(title: params[:label_name])
+    @labels = @project.labels.where(title: params[:label_name])
 
     respond_to do |format|
       format.html
       format.json do
         render json: {
-          html: view_to_html_string("projects/merge_requests/_merge_requests")
+          html: view_to_html_string("projects/merge_requests/_merge_requests"),
+          labels: @labels
         }
       end
     end

app/views/shared/issuable/_filter.html.haml

@@ -46,7 +46,7 @@
           .filter-item.inline
             = button_tag "Update issues", class: "btn update_selected_issues btn-save"
 
-  .gray-content-block.second-block.filtered-labels{ class: ("hidden" if !@labels) }
+  .gray-content-block.second-block.filtered-labels
     - if @labels
       = render "shared/labels_row", labels: @labels