MONGOID-5451: Correct default legacy_attributes Mongoid 8.0 release notes #5421 
MONGOID-5451: Correct default legacy_attributes Mongoid 8.0 release notes #5421 

Co-authored-by: shields <d20b7e8dbdb0afa35105339af03062ec55adc574@tablecheck.com>
mongodb/mongoid,mongodb/mongoid,mongodb/mongoid