Description:
------------
Local object variable inside a class method is not recreated in each function call when executed from cli.
Works properly through php-fpm but outputs a different result when executed through cli.

It does not happen without the (object) casting. Also if I'll instantiate $arr with new stdClass() it will not happen.
Seems like the $arr = (object) is being preserved in the memory by php7's engine.

Test script:
---------------
<?php
class Test {
    public function test(){
        $arr = (object) [
            'children' => []
        ];
        $arr->children[] = 1;
        return $arr;
    }
}

$o = new Test();
$o->test();

print_r( $o->test() );

Expected result:
----------------
stdClass Object
(
    [children] => Array
        (
            [0] => 1
        )
)

Actual result:
--------------
stdClass Object
(
    [children] => Array
        (
            [0] => 1
            [1] => 1
        )
)