Duplicate closed events
I'm getting duplicate issue closed events when accepting merge requests on a gitlab-ce installation (Ubuntu 14.04 LTS). I can't replicate this on gitlab.com, but if anyone could point me in the right direction I would be happy to run any traces or diagnostics that are available. Attached screenshot from the instance and gitlab.com.
Components
GitLab 8.10.6
GitLab Shell 3.2.1
GitLab API v3
Git 2.7.4
Ruby 2.1.8p440
Rails 4.2.7.1
PostgreSQL 9.2.17