buffered subtests show nothing on bailout

[exodist]

use Test2::Bundle::Extended;

subtest foo => sub {
    ok(1);
    subtest bar => sub {
        ok(1);
        subtest baz => sub {
            ok(1);
            bail_out "xx";
        }   
    };  
};

done_testing;

# Seeded srand with seed '20161230' from local date.
ok 1
Bail out!  xx
# Tests were run but no plan was declared and done_testing() was not seen.
# Looks like your test exited with 255 after test #1.