hash comparison from documentation is incorrect: etc was the default

Using perl524 with Test2::Tools::Compare from Test2-Suite-0.000067
the following example is not working

#!/bin/env perl

use strict;
use warnings;

use Test2::Bundle::Extended;
use Test2::Tools::Explain;
use Test2::Plugin::NoWarnings;

my $some_hash = { a => 1, b => 42, c => 12345 };

is(
    $some_hash,
    hash {    # Note: the hash function is not exported by default
        field a => 1;
        field b => match(qr/[0-9]+/);    # Note: The match function is not exported by default
        # Don't care about other fields.
    },
    "The hash comparison is not strict"
);

> prove -v test.pl
test.pl ..
# Seeded srand with seed '20170118' from local date.
ok 1 - The hash comparison is not strict
not ok 2 - Unexpected warning: !!! NOTICE OF BEHAVIOR CHANGE !!!
This test uses at least 1 <HASH> check without using end() or etc().
The old behavior was to default to etc() when inside is().
The old behavior was a bug.
The new behavior is to default to end().
This test will soon start to fail with the following diagnostics:
+------+----------------+---------+------------------+--------+
| PATH | GOT            | OP      | CHECK            | LNs    |
+------+----------------+---------+------------------+--------+
|      | HASH(0xd9d6c8) |         | <HASH>           | 32, 35 |
| {c}  | 12345          | !exists | <DOES NOT EXIST> |        |
+------+----------------+---------+------------------+--------+
 at test.pl line 37.
# Tests were run but no plan was declared and done_testing() was not seen.
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/2 subtests

Test Summary Report
-------------------
test.pl (Wstat: 256 Tests: 2 Failed: 1)
  Failed test:  2
  Non-zero exit status: 1
  Parse errors: No plan found in TAP output
Files=1, Tests=2,  0 wallclock secs ( 0.03 usr  0.00 sys +  0.10 cusr  0.01 csys =  0.14 CPU)
Result: FAIL

I see two problems there:
1/ the doc is not up to date as etc is not the default behavior now, we should document to use either etc or end
2/ If you run this test inside a subtest... then you have no correct warning message displayed... and the test fails...

my $some_hash = { a => 1, b => 42, c => 12345 };

subtest Foo => sub {
	is(
    $some_hash,
    hash {    # Note: the hash function is not exported by default
        field a => 1;
        field b => match(qr/[0-9]+/);    # Note: The match function is not exported by default
        # Don't care about other fields.
        #etc();
    },
    "The hash comparison is not strict"
);
};

> prove -v test.pl
test.pl ..
# Seeded srand with seed '20170118' from local date.
not ok 1 - Foo {
    ok 1 - The hash comparison is not strict
    1..2
}
# Failed test 'Foo'

Reproduce the two examples in test.pl using Test2::Tools::Compare, especially the hash comparison inside the subtest. Read the hash-comparison documentation and the warning behavior around etc() and end(); done means the documentation reflects the current default and the subtest case reports the correct warning and test result.