Also use latest_status, feedback:

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7333#note_20058857

Author: godfat

lib/gitlab/badge/build/status.rb

@@ -21,8 +21,7 @@ def entity
         def status
           @project.pipelines
             .where(sha: @sha)
-            .latest(@ref)
-            .status || 'unknown'
+            .latest_status(@ref) || 'unknown'
         end
 
         def metadata