Compilation/Execution problem with recursive function (polymorphic?) in JSLIGO

Given the following contract named contract.jsligo:

let recursion : ( xs : list<_a>) => option<_a> = 
   (xs : list<_a>) : option<_a> => {
        return recursion(xs);
   };

export let main = ([parameter, storage] : [list<string>, int]) : [list<operation>, int] => {
   let _ = recursion(parameter);
   return [list([]) as list<operation>, storage]
}

and the given test fragment:

#import "contract.jsligo" "Contract"

let _ = Test.originate(Contract.main, 0, 0 as tez);

The test execution fails with the following message:

➤ ~/bin/ligo run test test.jsligo                                                                                                      
An internal error ocurred. Please, contact the developers.
Corner case: recursion not found in env.

Note: This problem does not exist if I remove the polymorphic type replacing _a by string for instance.