ActiveRecord::RecordInvalid: Validation failed: Project can't be blank (ActiveRecord::RecordInvalid)

Sentry Issue: GITLABCOM-BS09

ActiveRecord::RecordInvalid: Validation failed: Project can't be blank (ActiveRecord::RecordInvalid)
  lib/gitlab/database/load_balancing/connection_proxy.rb:127:in `public_send'
    connection.public_send(...)
  lib/gitlab/database/load_balancing/connection_proxy.rb:127:in `block in write_using_load_balancer'
    connection.public_send(...)
  lib/gitlab/database/load_balancing/load_balancer.rb:145:in `block in read_write'
    yield connection
  lib/gitlab/database/load_balancing/load_balancer.rb:250:in `retry_with_backoff'
    return yield attempt # Yield the current attempt count
  lib/gitlab/database/load_balancing/load_balancer.rb:135:in `read_write'
    retry_with_backoff(attempts: attempts) do |attempt|
...
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