We have released GitLab Community Edition 7.3.1 that fixes several issues:
GitLab Enterprise Edition 7.3.1 also includes the above mentioned fixes.
Packages for GitLab Community Edition 7.3.1 have been released for Ubuntu 12.04, Ubuntu 14.04, Debian 7, CentOS 6.5, CentOS 7. GitLab Enterprise Edition packages can be found in the subscribers repository.
Omnibus-gitlab packages for GitLab 7.3.1 are now available. Be sure to do 'sudo gitlab-ctl stop nginx' before upgrading from 7.3.0.