{"action":"opened","issue":{"url":"https://api.github.com/repos/Particular/NServiceBus.Persistence.Sql/issues/265","repository_url":"https://api.github.com/repos/Particular/NServiceBus.Persistence.Sql","labels_url":"https://api.github.com/repos/Particular/NServiceBus.Persistence.Sql/issues/265/labels{/name}","comments_url":"https://api.github.com/repos/Particular/NServiceBus.Persistence.Sql/issues/265/comments","events_url":"https://api.github.com/repos/Particular/NServiceBus.Persistence.Sql/issues/265/events","html_url":"https://github.com/Particular/NServiceBus.Persistence.Sql/issues/265","id":304269271,"number":265,"title":"Publisher fails to process subscription after subscriber is upgraded from V5 to V6","user":{"login":"SzymonPobiega","id":163318,"avatar_url":"https://avatars1.githubusercontent.com/u/163318?v=4","gravatar_id":"","url":"https://api.github.com/users/SzymonPobiega","html_url":"https://github.com/SzymonPobiega","followers_url":"https://api.github.com/users/SzymonPobiega/followers","following_url":"https://api.github.com/users/SzymonPobiega/following{/other_user}","gists_url":"https://api.github.com/users/SzymonPobiega/gists{/gist_id}","starred_url":"https://api.github.com/users/SzymonPobiega/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/SzymonPobiega/subscriptions","organizations_url":"https://api.github.com/users/SzymonPobiega/orgs","repos_url":"https://api.github.com/users/SzymonPobiega/repos","events_url":"https://api.github.com/users/SzymonPobiega/events{/privacy}","received_events_url":"https://api.github.com/users/SzymonPobiega/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-03-12T07:49:11Z","updated_at":"2018-03-12T07:49:11Z","closed_at":null,"author_association":"MEMBER","body":"### Symptoms\r\n\r\nThe subscribe message fails processing due to unique constraint violation when a subscribe message has been sent by an already subscribed endpoint after that endpoint was upgraded to NServiceBus 6.\r\n\r\n### Who's affected\r\n\r\nAll users of SQL Persistence depend on message-driven subscriptions (use transports that don't have native publish/subscribe capabilities i.e. MSMQ, SQL Server, ASQ)"}}
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