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-rw-r--r--lib/action_cable/connection/subscriptions.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/action_cable/connection/subscriptions.rb b/lib/action_cable/connection/subscriptions.rb
index 2672279828..24ab1bdfbf 100644
--- a/lib/action_cable/connection/subscriptions.rb
+++ b/lib/action_cable/connection/subscriptions.rb
@@ -27,7 +27,7 @@ module ActionCable
end
if subscription_klass
- subscriptions[id_key] = subscription_klass.new(connection, id_key, id_options)
+ subscriptions[id_key] ||= subscription_klass.new(connection, id_key, id_options)
else
logger.error "Subscription class not found (#{data.inspect})"
end