subtests ignore snapshotted contexts

Given the following code which attempts to preserve the context at the line where test is invoked:

use Test2::V0;
use Test2::API qw( context_do run_subtest );

sub test {
    context_do {
        my $ctx = shift->snapshot;
        sub {  $ctx->do_in_context( sub { context_do { shift->alert('') ; pass}  }   ) };
    }
};

my $subtest = test;

# this gives correct line no
$subtest->();

# this reports incorrect line no
run_subtest( 'foo', sub { $subtest->();}, { buffered => 1, inherit_trace => 1 } );

done_testing;

I would expect that the direct execution of $subtest->() and its execution within a subtest would result in similar stack frame output, but they differ:

% perl  -Ilib context.pl 
# Seeded srand with seed '20200513' from local date.
 at context.pl line 11.
ok 1
 at context.pl line 17.
ok 2 - foo {
    ok 1
    1..1
}
1..2

The direct execution outputs the expected result, namely where test was called, while the subtest output is from where run_subtests was called

Start by running the supplied context.pl reproduction with Test2::API's context_do and run_subtest, comparing the direct and subtest stack output. Trace how the snapshotted context is used inside run_subtest with buffered and inherit_trace enabled. Done means both executions report the call site where test was invoked, with the existing test output still passing.