Connector returns out of sync errors / packets out of order

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

$mysqli = new mysqli( "127.0.0.1", "", "", "" );

$select1 = $mysqli->prepare( "SELECT 1" );

$select1->execute();

$select1->store_result();

$select2 = $mysqli->prepare( "SELECT 2" );

$select2->execute();

while ( $select1->fetch() )

{

	;

}

$select1->free_result();

$select1 = $mysqli->prepare( "SELECT 1" );

$select1->execute();

$select1->store_result();

$select2 = $mysqli->prepare( "SELECT 2" );

$select2->execute();

dcarver@dcarver:/private/tmp$ php test.php

Warning: Packets out of order. Expected 1 received 4. Packet size=10 in /private/tmp/test.php on line 8

Warning: mysqli::prepare(): MySQL server has gone away in /private/tmp/test.php on line 8

Fatal error: Uncaught mysqli_sql_exception: MySQL server has gone away in /private/tmp/test.php:8

Stack trace:

#0 /private/tmp/test.php(8): mysqli->prepare('SELECT 1')

#1 {main}

  thrown in /private/tmp/test.php on line 8

dcarver@dcarver:/private/tmp$ php test.php

Warning: Packets out of order. Expected 1 received 4. Packet size=10 in /private/tmp/test.php on line 20

Warning: mysqli::prepare(): MySQL server has gone away in /private/tmp/test.php on line 20

Fatal error: Uncaught mysqli_sql_exception: MySQL server has gone away in /private/tmp/test.php:20

Stack trace:

#0 /private/tmp/test.php(20): mysqli->prepare('SELECT 1')

#1 {main}

  thrown in /private/tmp/test.php on line 20

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

$mysqli = new mysqli( "127.0.0.1", "", "", "" );

$select1 = $mysqli->prepare( "SELECT 1" );

$select1->execute();

$select1->store_result();

$select2 = $mysqli->prepare( "SELECT 2" );

$select2->execute();

while ( $select1->fetch() )

{

	;

}

$select3 = $mysqli->prepare( "SELECT 3" );

$select3->execute();

?>

dcarver@dcarver:/private/tmp$ php test.php

Fatal error: Uncaught mysqli_sql_exception: Commands out of sync; you can't run this command now in /private/tmp/test.php:18

Stack trace:

#0 /private/tmp/test.php(18): mysqli->prepare('SELECT 3')

#1 {main}

  thrown in /private/tmp/test.php on line 18

dcarver@dcarver:/private/tmp$ php test.php

Fatal error: Uncaught mysqli_sql_exception: Commands out of sync; you can't run this command now in /private/tmp/test.php:18

Stack trace:

#0 /private/tmp/test.php(18): mysqli->prepare('SELECT 3')

#1 {main}

  thrown in /private/tmp/test.php on line 18