I have a root user setup with my corporate email address. If I try to import my regular ldap login into phabricator it fails with this error :
#1062: Duplicate entry 'firstname.lastname@example.org' for key 2, where email@example.com is also the email used by the root user.
No error was seen in any of the logs in /var/log/httpd
Running on apache on CentOS 5.10
Version : 2.2.3
Release : 85.el5.centos