README

Perhaps model.rb line 195 has a bug.

The addition operator is probably intended to remove duplicates
(set like behavior) but does not appear to actually do so.

console (merb -i)

merb -i

repos = User.repositories
rarr = []
repos.each { |r| rarr << r }

rarr[0].inspect
=> "#<DataMapper::Repository:0x1a95f8c @identity_maps={}, @name=:default>"

rarr[1].inspect
=> "#<DataMapper::Repository:0x1a960a4 @identity_maps={}, @name=:default>"

rarr[0] == rarr[1]
=> true

rarr[0].eql? rarr[1]
=> true

rarr[0].equal? rarr[1]
=> false

rarr[0].hash
=> 13938630

rarr[1].hash
=> 13938770

model.rb

    def repositories
      [ repository ].to_set + @properties.keys.collect { |repository_name| DataMapper.repository(repository_name) }
    end