willholley opened a new pull request #998: Test duplicate fields in Mango selector URL: https://github.com/apache/couchdb/pull/998 ## Overview Adds a test to verify the behaviour of duplicate fields in a Mango selector. The fix for CVE-2017-12635 (#936) resulted in CouchDB's JSON parser only recognising the last instance of duplicated fields in a JSON object. This represents a breaking change to Mango (_find) because, previuously, all instances would have been considered when evaluating a selector. This test verifies that Mango now only considers the last instance of a field, silently ignoring those that appear before it. TBD whether we can or should show an error when this occurs, since this leads to predicates silently being ignored. ## Testing recommendations Run the Mango test suite. ## Related Issues or Pull Requests #936 ## Checklist - [ ] Code is written and works correctly; - [ ] Changes are covered by tests; - [ ] Documentation reflects the changes;
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