uninitialized constant Mongoid::Token::Collisions

[Startouf]

I am often running into random errors with Mongoid::Token, it seems that some of my constants are tried to be resolved from Mongoid::Token::Collisions scope.

Like

uninitialized constant Mongoid::Token::Collisions::ProfilesController
uninitialized constant Mongoid::Token::Collisions::RegistrationsController

Often prefixing my controller class names with :: (::ProfilesController) do help but not always

Actually the problem may come from here : I have model classes that have the same name as a module I use to prefix my controller

class Admin 
  token ...
end

class Admin::ProfilesController < ApplicationController
end
# => uninitialized constant Mongoid::Token::Collisions::ProfilesController

My Stack Trace

activesupport (5.0.0.1) lib/active_support/inflector/methods.rb:283:in `const_get'
activesupport (5.0.0.1) lib/active_support/inflector/methods.rb:283:in `block in constantize'
activesupport (5.0.0.1) lib/active_support/inflector/methods.rb:266:in `each'
activesupport (5.0.0.1) lib/active_support/inflector/methods.rb:266:in `inject'
activesupport (5.0.0.1) lib/active_support/inflector/methods.rb:266:in `constantize'
actionpack (5.0.0.1) lib/action_dispatch/http/request.rb:93:in `controller_class'
actionpack (5.0.0.1) lib/action_dispatch/routing/route_set.rb:44:in `controller'
actionpack (5.0.0.1) lib/action_dispatch/routing/route_set.rb:30:in `serve'
actionpack (5.0.0.1) lib/action_dispatch/journey/router.rb:39:in `block in serve'
actionpack (5.0.0.1) lib/action_dispatch/journey/router.rb:26:in `each'
actionpack (5.0.0.1) lib/action_dispatch/journey/router.rb:26:in `serve'
actionpack (5.0.0.1) lib/action_dispatch/routing/route_set.rb:725:in `call'
rack-attack (5.0.1) lib/rack/attack.rb:147:in `call'
omniauth (1.3.2) lib/omniauth/strategy.rb:186:in `call!'
omniauth (1.3.2) lib/omniauth/strategy.rb:164:in `call'
omniauth (1.3.2) lib/omniauth/strategy.rb:186:in `call!'
omniauth (1.3.2) lib/omniauth/strategy.rb:164:in `call'
rack-tracker (1.1.0) lib/rack/tracker.rb:34:in `call'
rack-utm (0.0.2) lib/rack-utm.rb:59:in `call'
warden (1.2.6) lib/warden/manager.rb:35:in `block in call'
warden (1.2.6) lib/warden/manager.rb:34:in `catch'
warden (1.2.6) lib/warden/manager.rb:34:in `call'
rack (2.0.1) lib/rack/etag.rb:25:in `call'
rack (2.0.1) lib/rack/conditional_get.rb:25:in `call'
rack (2.0.1) lib/rack/head.rb:12:in `call'
rack (2.0.1) lib/rack/session/abstract/id.rb:222:in `context'
rack (2.0.1) lib/rack/session/abstract/id.rb:216:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/cookies.rb:613:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/callbacks.rb:38:in `block in call'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:97:in `__run_callbacks__'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:750:in `_run_call_callbacks'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:90:in `run_callbacks'
actionpack (5.0.0.1) lib/action_dispatch/middleware/callbacks.rb:36:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/debug_exceptions.rb:49:in `call'
web-console (3.3.1) lib/web_console/middleware.rb:131:in `call_app'
web-console (3.3.1) lib/web_console/middleware.rb:28:in `block in call'
web-console (3.3.1) lib/web_console/middleware.rb:18:in `catch'
web-console (3.3.1) lib/web_console/middleware.rb:18:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
railties (5.0.0.1) lib/rails/rack/logger.rb:36:in `call_app'
railties (5.0.0.1) lib/rails/rack/logger.rb:24:in `block in call'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:70:in `block in tagged'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:70:in `tagged'
railties (5.0.0.1) lib/rails/rack/logger.rb:24:in `call'
ahoy_matey (1.5.2) lib/ahoy/engine.rb:22:in `call_with_quiet_ahoy'
request_store (1.3.1) lib/request_store/middleware.rb:9:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/request_id.rb:24:in `call'
rack (2.0.1) lib/rack/method_override.rb:22:in `call'
rack (2.0.1) lib/rack/runtime.rb:22:in `call'
activesupport (5.0.0.1) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/static.rb:136:in `call'
rack (2.0.1) lib/rack/sendfile.rb:111:in `call'
rack-cors (0.4.0) lib/rack/cors.rb:80:in `call'
railties (5.0.0.1) lib/rails/engine.rb:522:in `call'
puma (3.6.0) lib/puma/configuration.rb:225:in `call'
puma (3.6.0) lib/puma/server.rb:578:in `handle_request'
puma (3.6.0) lib/puma/server.rb:415:in `process_client'
puma (3.6.0) lib/puma/server.rb:275:in `block in run'
puma (3.6.0) lib/puma/thread_pool.rb:116:in `block in spawn_thread'
  Rendering /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.html.erb within rescues/layout
  Rendering /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb
  Rendered /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (3.9ms)
  Rendered collection of /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/routes/_route.html.erb [301 times] (124.3ms)
  Rendered collection of /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/routes/_route.html.erb [5 times] (3.0ms)
  Rendered collection of /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/routes/_route.html.erb [1 times] (0.6ms)
  Rendered collection of /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/routes/_route.html.erb [2 times] (1.0ms)
  Rendered /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/routes/_table.html.erb (2.4ms)
  Rendering /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb
  Rendered /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (2.6ms)
  Rendered /Users/Cyril/.rvm/gems/ruby-2.3.3/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/routing_error.html.erb within rescues/layout (325.7ms)