explitly call to_a on relation
explitly call to_a on relation

the unique web forms method was expecting an implicit
to_a on a relation before calling #reject! change this
to an explicit to_a to fix the error

MS-1235

bcook-r7/metasploit_data_models,rapid7/metasploit_data_models,bcook-r7/metasploit_data_models,rapid7/metasploit_data_models,bcook-r7/metasploit_data_models,rapid7/metasploit_data_models