Tuleap Community Edition — Dev Build 13.4.99.14
When using "add member" from LDAP and when the user email address is too long (33 characters is failing, 29 is ok) , the server hangs, and finish in a 504 Gateway error.
Adding it from Admin space is the same.
UPDATE: the error is due to the size limit of the login field in tuleap. It is limited to 30. However, our LDAP configuration is using email address as login, and most of our users have an email address bigger than 30 characters...
I have seen the error message about the 30 char long in the admin user when trying to add manually a user with its email addres as login..