Use all pipelines variable when creating merge request

app/controllers/projects/merge_requests_controller.rb

@@ -558,8 +558,8 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     @commit = @merge_request.diff_head_commit
     @base_commit = @merge_request.diff_base_commit
 
-    @pipeline = @merge_request.pipeline
-    @statuses = @pipeline.statuses.relevant if @pipeline
+    @pipelines = @merge_request.all_pipelines
+    @statuses = @pipelines.first.statuses.relevant if @pipelines.any?
     @note_counts = Note.where(commit_id: @commits.map(&:id)).
       group(:commit_id).count
   end

app/views/projects/merge_requests/_new_submit.html.haml

@@ -29,11 +29,11 @@
         = link_to url_for(params), data: {target: 'div#commits', action: 'new', toggle: 'tab'} do
           Commits
           %span.badge= @commits.size
-      - if @pipeline
+      - if @pipelines.any?
         %li.builds-tab
           = link_to url_for(params), data: {target: 'div#pipelines', action: 'pipelines', toggle: 'tab'} do
             Pipelines
-            %span.badge= @statuses.size
+            %span.badge= @pipelines.size
         %li.builds-tab
           = link_to url_for(params), data: {target: 'div#builds', action: 'builds', toggle: 'tab'} do
             Builds
@@ -48,7 +48,7 @@
         = render "projects/merge_requests/show/commits"
       #diffs.diffs.tab-pane
         - # This tab is always loaded via AJAX
-      - if @pipeline
+      - if @pipelines.any?
         #builds.builds.tab-pane
           = render "projects/merge_requests/show/builds"
         #pipelines.pipelines.tab-pane
@@ -65,5 +65,5 @@
 :javascript
   var merge_request = new MergeRequest({
     action: "#{(@show_changes_tab ? 'new/diffs' : 'new')}",
-    buildsLoaded: "#{@pipeline ? 'true' : 'false'}"
+    buildsLoaded: "#{@pipelines.any? ? 'true' : 'false'}"
   });