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-rw-r--r--actioncable/lib/action_cable/connection/identification.rb3
1 files changed, 1 insertions, 2 deletions
diff --git a/actioncable/lib/action_cable/connection/identification.rb b/actioncable/lib/action_cable/connection/identification.rb
index c91a1d1fd7..ffab359429 100644
--- a/actioncable/lib/action_cable/connection/identification.rb
+++ b/actioncable/lib/action_cable/connection/identification.rb
@@ -6,8 +6,7 @@ module ActionCable
extend ActiveSupport::Concern
included do
- class_attribute :identifiers
- self.identifiers = Set.new
+ class_attribute :identifiers, default: Set.new
end
class_methods do