Adding New scopes results in error

[rigel-eva]

Changing scopes currently does not work, the URL ends up auto encoding and replacing it with the escaped version of the deliminator needed to add on additional scopes, resulting in a 400 error on Twitch's side.

Expected Behavior: https://api.twitch.tv/kraken/oauth2/authorize?client_id=[client_id]&redirect_uri=[redirect_uri]&response_type=code&scope=openid+chat_login&state=[state] Current Behavior: https://api.twitch.tv/kraken/oauth2/authorize?client_id=[client_id]&redirect_uri=[redirect_uri]&response_type=code&scope=openid%2Bchat_login&state=[state]

omniauth.rb:

[...]
  provider :twitch, ENV['TWITCH_CHAT_KEY'], ENV['TWITCH_CHAT_SECRET'],{
    :name =>'twitch_chat',
    :scope =>'openid+chat_login',
    :callback_path=>"/auth/twitch_chat/callback"
  }
[...]