NoMethodError in DmailController#create

undefined method merge' for nil:NilClass RAILS_ROOT: /home/e621/e621-production/current Application Trace | Framework Trace | Full Trace /home/e621/e621-production/current/app/controllers/dmail_controller.rb:16:in create'
/usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/base.rb:1333:in send' /usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/base.rb:1333:in perform_action_without_filters'
/usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/filters.rb:617:in call_filters' /usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/filters.rb:610:in perform_action_without_benchmark'
/usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/benchmarking.rb:68:in perform_action_without_rescue' /usr/local/rvm/gems/ree-1.8.7-2012.02/gems/activesupport-2.3.18/lib/active_support/core_ext/benchmark.rb:17:in ms'
/usr/local/rvm/gems/ree-1.8.7-2012.02/gems/activesupport-2.3.18/lib/active_support/core_ext/benchmark.rb:17:in ms' /usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/benchmarking.rb:68:in perform_action_without_rescue'
/usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/rescue.rb:160:in perform_action_without_flash' /usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/flash.rb:151:in perform_action'
/usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/base.rb:532:in send' /usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/base.rb:532:in process_without_filters'
/usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/filters.rb:606:in process' /usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/base.rb:391:in process'
/usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/base.rb:386:in call' /usr/local/rvm/gems/ree-1.8.7-2012.02/gems/actionpack-2.3.18/lib/action_controller/routing/route_set.rb:438:in call'
Request

Parameters:

None
Show session dump

Response

Headers:

{"Content-Type"=>"",
"Set-Cookie"=>"blacklisted_tags=derp&equestria_girls&spongebob_squarepants&gag&bit_gag&ponyplay&nezumi&dakuroihoshi&gagged&fluttershy_%28mlp%29&hoihoi&dakimakura&bovine+-corruption_of_champions&freckles_%28artist%29&smudge_proof&user%3Acolossalfaggot&pixar&kayla-na&domination+-corruption_of_champions&pig&female_domination&rimming+-corruption_of_champions&bridle+-corruption_of_champions&mine+-corruption_of_champions&ball_gag+-holtzmann+-corruption_of_champions&my_little_pony+-anthro+-anthrofied+-breasts+-cosplay&feral+-corruption_of_champions&nazi&multi_breast+-corruption_of_champions&care_bears&broken_horn&male+rating%3Aexplicit+-female&slave+-corruption_of_champions&slavery+-corruption_of_champions&knight&hitler&octopus&leash+-corruption_of_champions&bound+-tentacles&ogre+-corruption_of_champions&bdsm+-corruption_of_champions&teats&torture+-corruption_of_champions&barbed_wire&rating%3Aexplicit+young&slug&fart&chubby+-corruption_of_champions&chipmunk+-corruption_of_champions&overweight+-corruption_of_champions&taur+-corruption_of_champions&diaper&gay+-corruption_of_champions&peeing&big_macintosh_%28mlp%29&feces&duck&marauder6272&vomit&whip+-corruption_of_champions&sick&brainwashing&hypnosis&andava&ponyboom&gore&adolf_hitler&castration&rape+-corruption_of_champions&krystal&implied_cannibalism&kayla-na&snail&whitekitten&bound&badgerben&forcefeeding&force_feeding&renamon&spike_%28mlp%29&horn_ring&small_breasts&prolapse&humanized&bear&vore+-corruption_of_champions; path=/\nblacklist_avatars=true; path=/\nblacklist_users=true; path=/",
"Cache-Control"=>"no-cache"}