Server-side behavior has changed: https://jira.mongodb.org/browse/SERVER-14527
In particular, we'll need to fix this affected test: https://github.com/samantharitter/mongo-ruby-driver/blob/1.x-stable/test/functional/db_test.rb#L185
- is related to
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SERVER-14527 MongoDB servers processes should only setLastError when wire writes or write commands fail.
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- Closed
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