ActiveResource Generates Wrong XML for multi_parameter_attributes

Let's say you have an ActiveResource, Event, with a datetime field called "starts".

You want to be able to initialize or update event with a multiple parameter attribute, like from a datetime select.

One ought to be able to do: Event.new({"starts(1i)"=>"2008", "starts(2i)"=>"8", "ends(1i)"=>"2008", "starts(3i)"=>"19", "ends(2i)"=>"8", "starts(4i)"=>"21", "ends(3i)"=>"19", "starts(5i)"=>"00", "ends(4i)"=>"22", "ends(5i)"=>"00"}).save

However, this generates XML with a syntax error: ... <starts(1i)>2008</starts(1i)> ...

When the actual resource tries to parse the incoming XML, it dies.

/!\ FAILSAFE /!\ Tue Aug 19 14:12:50 -0700 2008 Status: 500 Internal Server Error #<REXML::ParseException: malformed XML: missing tag start Line: Position: Last 80 unconsumed characters: <starts(1i)>2008</starts(1i)> <starts(2i)>8</starts(2i)> <ends(1i)>2008 /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rexml/parsers/baseparser.rb:356:in pull' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rexml/parsers/treeparser.rb:22:inparse'