Double Prefetch with uniqueness valdiations profile

[#56005352]

67.94 seconds total.  28.87 seconds (42.5%) spent in
ActiveRecord::Validations::UniquenessValidation#validate_each.  34.12
seconds (50.2%) spent in PG::Connection#async_exec.  18.38 seconds
(27.1%) spent in
Metasploit::Framework::Module::Ancestor::Load#metasploit_module.  I have
the full pdf from pprof in Evernote if anyone wants to see it.