After moving to Foreman 1.8 I now receive an error that the group does not exist. I have since specified a group base dn and have ensured that the group exists within it. Debug logs are below.

Started POST "/usergroups" for 10.10.153.130 at 2015-05-21 13:43:23 -0500
2015-05-21 13:43:23 [I] Processing by UsergroupsController#create as HTML
2015-05-21 13:43:23 [I] Parameters: {"utf8"=>"✓", "authenticity_token"=>"CfGNMXCJ+5kl2uvYn8CTUUqK4KZsaVJJX0tvEqGcRRE=", "usergroup"=>{"name"=>"server_admins", "usergroup_ids"=>["", "", ""], "user_ids"=>[""], "admin"=>"1", "role_ids"=>[""], "external_usergroups_attributes"=>{"0"=>{"_destroy"=>"false", "name"=>"server_admins", "auth_source_id"=>"5"}, "new_external_usergroups"=>{"_destroy"=>"false", "name"=>"", "auth_source_id"=>"5"}}}, "commit"=>"Submit"}
2015-05-21 13:43:23 [I] Failed to save: Name is not found in the authentication source
2015-05-21 13:43:23 [I] Rendered common/_edit_habtm.html.erb (3.4ms)
2015-05-21 13:43:23 [I] Rendered usergroups/_external.html.erb (2.5ms)
2015-05-21 13:43:23 [I] Rendered usergroups/_external.html.erb (1.8ms)
2015-05-21 13:43:23 [I] Rendered usergroups/_form.html.erb (29.0ms)
2015-05-21 13:43:23 [I] Rendered usergroups/new.html.erb within layouts/application (29.4ms)
2015-05-21 13:43:23 [I] Rendered home/_user_dropdown.html.erb (1.2ms)
2015-05-21 13:43:23 [I] Read fragment views/tabs_and_title_records-33 (0.1ms)
2015-05-21 13:43:23 [I] Rendered home/_topbar.html.erb (3.1ms)
2015-05-21 13:43:23 [I] Rendered layouts/base.html.erb (4.2ms)
2015-05-21 13:43:23 [I] Completed 200 OK in 68ms (Views: 29.7ms | ActiveRecord: 10.1ms)

Dominic Cleal wrote:

I think this exception happens when it's looking up members of the AD group. It might be helpful to reproduce this if you can attach an ldapsearch output of the group and the user inside it.

This issue can be closed. . . it's on my end since we have commas in the user CN. Dominic sent me the fix in IRC.