Stan Hu 2e564ddfc7 Fix duplicate key errors in PostDeployMigrateUserExternalMailData migration ... `email_provider` by default is NULL, and if a user had not logged the value would remain NULL. Upgrading to GitLab 10.0 would lead to a PG::UniqueViolation because the post-deploy migration would attempt to reinsert the entry because the NULL comparison between `users.email_provider` and `user_synced_attributes_metadata.email_provider` would never match. Closes #38246		2017-09-22 22:45:25 -04:00
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unreleased	Fix duplicate key errors in PostDeployMigrateUserExternalMailData migration	2017-09-22 22:45:25 -04:00
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