Debian package contains gitlab patches
Bug: https://gitlab.com/gitlab-org/gitlab-ce/issues/13280

--- a/Gemfile
+++ b/Gemfile
@@ -58,7 +58,7 @@
 # LDAP Auth
 # GitLab fork with several improvements to original library. For full list of changes
 # see https://github.com/intridea/omniauth-ldap/compare/master...gitlabhq:master
-gem 'gitlab_omniauth-ldap', '~> 1.2.1', require: 'omniauth-ldap'
+gem 'omniauth-ldap', '~> 1.0.4', require: "omniauth-ldap"
 
 # Git Wiki
 # Required manually in config/initializers/gollum.rb to control load order