Created attachment 478074 [details]
ss

Description of problem:

Concurrent user test fails.. deleting objects w/ one user while another user views object

Recreate:
You will need two browsers using two different sessions to recreate this bug.
In my setup I had one chrome browser and one firefox browser logged in as admin

1. in firefox browser, as admin.. create a provider. Click on the provider so you are in the "details" view of the provider

2. in the chrome browser, as admin.. delete the provider.  

3. in the firefox browser click on the provider name link or refresh the page..

In the provider details window.. you get..
 
Internal Server Error
Couldn't find Provider with ID=24


 privileges.target_type=E'Provider' and
 privileges.action=E'view')) ) AS id_list ORDER BY id_list.alias_0 LIMIT 1ESC[0m
  ESC[4;36;1mPermission Load Including Associations (1.0ms)ESC[0m   ESC[0;1mSELECT "permissions"."id" AS t0_r0, "permissions"."role_id" AS t0_r1, "permissions"."user_id" AS t0_r2, "permissions"."permission_object_id" AS t0_r3, "permissions"."permission_object_type" AS t0_r4, "permissions"."lock_version" AS t0_r5, "permissions"."created_at" AS t0_r6, "permissions"."updated_at" AS t0_r7, "roles"."id" AS t1_r0, "roles"."name" AS t1_r1, "roles"."scope" AS t1_r2, "roles"."lock_version" AS t1_r3, "roles"."created_at" AS t1_r4, "roles"."updated_at" AS t1_r5, "roles"."assign_to_owner" AS t1_r6, "privileges"."id" AS t2_r0, "privileges"."role_id" AS t2_r1, "privileges"."target_type" AS t2_r2, "privileges"."action" AS t2_r3, "privileges"."lock_version" AS t2_r4, "privileges"."created_at" AS t2_r5, "privileges"."updated_at" AS t2_r6 FROM "permissions" LEFT OUTER JOIN "roles" ON "roles".id = "permissions".role_id LEFT OUTER JOIN "privileges" ON privileges.role_id = roles.id WHERE ("permissions".permission_object_id = 1 AND "permissions".permission_object_type = E'BasePermissionObject' AND (permissions.user_id=1 and
 privileges.target_type=E'Provider' and
 privileges.action=E'view')) AND "permissions".id IN (2) ORDER BY permissions.id ASCESC[0m
  ESC[4;35;1mProvider Load (0.6ms)ESC[0m   ESC[0mSELECT * FROM "providers" ESC[0m
  ESC[4;36;1mProvider Load (0.3ms)ESC[0m   ESC[0;1mSELECT * FROM "providers" WHERE ("providers"."id" = 24) ESC[0m

ActiveRecord::RecordNotFound (Couldn't find Provider with ID=24):
  app/controllers/admin/providers_controller.rb:32:in `show'
  compass (0.10.4) lib/compass/app_integration/rails/actionpack2/action_controller.rb:7:in `process'
  haml (3.0.18) rails/./lib/sass/plugin/rack.rb:41:in `call'
  haml (3.0.18) rails/./lib/sass/plugin/rack.rb:41:in `call'
  /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
  /usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
  /usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
  /usr/lib/ruby/1.8/webrick/server.rb:162:in `start'
  /usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
  /usr/lib/ruby/1.8/webrick/server.rb:95:in `start'
  /usr/lib/ruby/1.8/webrick/server.rb:92:in `each'
  /usr/lib/ruby/1.8/webrick/server.rb:92:in `start'
  /usr/lib/ruby/1.8/webrick/server.rb:23:in `start'
  /usr/lib/ruby/1.8/webrick/server.rb:82:in `start'

Rendering template within layouts/popup
Rendering layouts/popup-error
  ESC[4;35;1mSQL (0.1ms)ESC[0m   ESC[0mSET client_min_messages TO 'panic'ESC[0m
  ESC[4;36;1mSQL (0.1ms)ESC[0m   ESC[0;1mSET client_min_messages TO 'notice'ESC[0m