enable milestone filter to stick

CHANGELOG

@@ -59,6 +59,7 @@ v 8.3.3
   - Fix Error 500 when visiting build page of project with nil runners_token (Stan Hu)
   - Use WOFF versions of SourceSansPro fonts
   - Fix regression when builds were not generated for tags created through web/api interface
+  - Fix: maintain milestone filter between Open and Closed tabs (Greg Smethells)
 
 v 8.3.2
   - Disable --follow in `git log` to avoid loading duplicate commit data in infinite scroll (Stan Hu)

app/helpers/application_helper.rb

@@ -266,7 +266,7 @@ module ApplicationHelper
       state: params[:state],
       scope: params[:scope],
       label_name: params[:label_name],
-      milestone_id: params[:milestone_id],
+      milestone_title: params[:milestone_title],
       assignee_id: params[:assignee_id],
       author_id: params[:author_id],
       sort: params[:sort],