Does not process redirect global mod correctly about spf-ruby HOT 2 OPEN

$ be irb                                                                                                                                                       2.2.2
irb(main):001:0>  require 'spf'
=> true
irb(main):002:0> spf_server = SPF::Server.new
=> #<SPF::Server:0x007fe8e28fd568 @default_authority_explanation=#<SPF::MacroString:0x007fe8e28fd4f0 @text="Please see http://www.openspf.org/Why?s=%{_scope};id=%{S};ip=%{C};r=%{R}", @server=#<SPF::Server:0x007fe8e28fd568 ...>, @request=nil, @expanded="Please see http://www.openspf.org/Why?s=%{_scope};id=%{S};ip=%{C};r=%{R}">, @hostname="scott-berke-mba.local", @dns_resolver=#<Resolv::DNS:0x007fe8e28fd270 @mutex=#<Mutex:0x007fe8e28fd248>, @config=#<Resolv::DNS::Config:0x007fe8e28fd220 @mutex=#<Mutex:0x007fe8e28fd1f8>, @config_info=nil, @initialized=nil, @timeouts=nil>, @initialized=nil>, @query_rr_types=1, @max_dns_interactive_terms=10, @max_name_lookups_per_term=10, @max_name_lookups_per_mx_mech=10, @max_name_lookups_per_ptr_mech=10, @max_void_dns_lookups=2, @raise_exceptions=true>
irb(main):003:0> request = SPF::Request.new(
irb(main):004:1*         versions:      [1],
irb(main):005:1*         scope:         'mfrom',
irb(main):006:1*         identity:      "[email protected]",
irb(main):007:1*         ip_address:    "167.89.50.131"
irb(main):008:1>       )
=> #<SPF::Request:0x007fe8e28cf7a8 @opt={:versions=>[1], :scope=>"mfrom", :identity=>"[email protected]", :ip_address=>"167.89.50.131"}, @state={}, @versions=[1], @scope=:mfrom, @authority_domain=nil, @identity="[email protected]", @ip_address=#<IP::V4 167.89.50.131>, @helo_identity=nil, @root_request=#<SPF::Request:0x007fe8e28cf7a8 ...>, @super_request=#<SPF::Request:0x007fe8e28cf7a8 ...>, @record=nil, @sub_requests=[], @localpart="example", @domain="sugarloafcut.com", @ip_address_v6=#<IP::V6 ::ffff:167.89.50.131>>
irb(main):009:0> 
irb(main):010:0*  spf_server.process(request)
TypeError: exception object expected
    from /Users/scottberke/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spf-0.0.46/lib/spf/model.rb:566:in `raise'
    from /Users/scottberke/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spf-0.0.46/lib/spf/model.rb:566:in `match'
    from /Users/scottberke/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spf-0.0.46/lib/spf/model.rb:988:in `block in eval'
    from /Users/scottberke/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spf-0.0.46/lib/spf/model.rb:984:in `each'
    from /Users/scottberke/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spf-0.0.46/lib/spf/model.rb:984:in `eval'
    from /Users/scottberke/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spf-0.0.46/lib/spf/eval.rb:103:in `process'
    from (irb):10
    from /Users/scottberke/.rbenv/versions/2.2.2/bin/irb:11:in `<main>'