Merge branch 'fix-double-query-string-url' into 'master'

Fix double query string in url

This MR should fix the double query string in url  that shows up while using the "filter by name .."  input  on projects list pages and also closes [17743](https://gitlab.com/gitlab-org/gitlab-ce/issues/17743)

Closes #17743

See merge request !4480

app/views/dashboard/_projects_head.html.haml

@@ -13,7 +13,7 @@
         Explore Projects
 
   .nav-controls
-    = form_tag request.original_url, method: :get, class: 'project-filter-form', id: 'project-filter-form' do |f|
+    = form_tag request.path, method: :get, class: 'project-filter-form', id: 'project-filter-form' do |f|
       = search_field_tag :filter_projects, params[:filter_projects], placeholder: 'Filter by name...', class: 'project-filter-form-field form-control input-short projects-list-filter', spellcheck: false, id: 'project-filter-form-field', tabindex: "2"
     = render 'shared/projects/dropdown'
     - if current_user.can_create_project?

app/views/groups/show.html.haml

@@ -33,7 +33,7 @@
           = link_to "#shared", 'data-toggle' => 'tab' do
             Shared Projects
     .nav-controls
-      = form_tag request.original_url, method: :get, class: 'project-filter-form', id: 'project-filter-form' do |f|
+      = form_tag request.path, method: :get, class: 'project-filter-form', id: 'project-filter-form' do |f|
         = search_field_tag :filter_projects, nil, placeholder: 'Filter by name', class: 'projects-list-filter form-control', spellcheck: false
       = render 'shared/projects/dropdown'
       - if can? current_user, :create_projects, @group