Aggregation can trip invariant related to renamed fields optimization

Include these stages in the db.collection.aggregate method: Project a new field. The new field name should include a colon Project the new field onto itself, as well as onto a second new field. The second new field can have any name Perform a match on the second new field. Example: db.getCollection( 'archiveData' ).aggregate([ { "$project" : { "foo:bar" : "$foo" , } }, { "$project" : { "foo:bar" : "$foo:bar" , "baz" : "$foo:bar" , } }, { "$match" : { "baz" : 1 } } ])