Organic Groups relationship causes - Fatal error: Call to a member function label() on a non-object

Overview

I just got this error again with Views 3.0-rc3, CTools 1.0-rc1 when trying to add a relationship to OG Membership. Not sure it's the same issue as listed here #1011266: Error getting relationship handler label from non-object. so I created this new issue. We can move this to the old issue if you prefer.

Steps to reproduce

• Add a node type
• Mark it as both group content and group item.
• Create a view on that node type with a page display
• Attempt to add the OG Membership relationship

Also triggers for the other OG relationship option.

An AJAX HTTP error occurred.
HTTP Result Code: 200
Debugging information follows.
Path: http://projects.dev.coldfrontlabs.ca/admin/structure/views/ajax/add-item/projects/page/relationship
StatusText: OK
ResponseText: 
( ! ) Fatal error: Call to a member function label() on a non-object in /var/www/html/snowstorm-projects/profiles/snowstorm/modules/contrib/views/includes/admin.inc on line 2239
Call Stack
#TimeMemoryFunctionLocation
10.0002730648{main}(  )../index.php:0
20.263054891232menu_execute_active_handler(  )../index.php:21
30.268856931072call_user_func_array
(  )../menu.inc:503
40.269356931784views_ui_ajax_form(  )../menu.inc:503
50.343061298528views_ui_regenerate_tab(  )../admin.inc:2914
60.343061298656views_ui_get_display_tab(  )../admin.inc:2343
70.343061298920views_ui_get_display_tab_details(  )../admin.inc:1516
80.370062920344views_ui_edit_form_get_bucket(  )../admin.inc:1722