Merge branch 'EN-8090-fix-slack-mention-on-association-account-creation' into staging

Author: nicolas-entourage

app/models/user.rb

@@ -410,7 +410,7 @@ def newsletter_subscription= newsletter_subscription
 
   def signal_association
     return unless address.present?
-    return saved_change_to_address? || (saved_change_to_goal? && goal_association?)
+    return saved_change_to_address_id? || (saved_change_to_goal? && goal_association?)
 
     SlackServices::SignalAssociationCreation.new(user: self).notify
   end