Fix protos that control multiple candidate lists
Fix protos that control multiple candidate lists

For example, when the proto is cloned because multi candidates are
defined in a nested scope.

salortiz/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,rakudo/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,salortiz/rakudo,labster/rakudo,rakudo/rakudo,salortiz/rakudo,salortiz/rakudo,rakudo/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,tbrowder/rakudo,salortiz/rakudo,salortiz/rakudo,labster/rakudo,labster/rakudo,tbrowder/rakudo,rakudo/rakudo,rakudo/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,labster/rakudo,rakudo/rakudo,labster/rakudo,MasterDuke17/rakudo,labster/rakudo,MasterDuke17/rakudo