I found a case with an org that had moved their login to a new account, and the old account got a new login. After this fix, the account with the stale login should be deleted, which would then get re-added by Repository#download_owner at some point. These records haven't been updated in 5 years, so fixing them like this is better than having the stale data around.
fixes bugsnag 65527440cf4e030007888c55
this is the same fix as in https://github.com/librariesio/libraries.io/pull/3271 , but for RepositoryOrganisations instead of RepositoryUsers.
I found a case with an org that had moved their login to a new account, and the old account got a new login. After this fix, the account with the stale login should be deleted, which would then get re-added by Repository#download_owner at some point. These records haven't been updated in 5 years, so fixing them like this is better than having the stale data around.