Getting warning while get from APC

[chekalsky]

Warning became to appear on PHP 7.2

src/Adapters/Apc.php:86

$values = $this->apcu_fetch($keys);

$tokens = array();
foreach ($values as $key => $value) {
       $tokens[$key] = serialize($value);
}

Warning on foreach line: Invalid argument supplied for foreach()

$values at this point equals false. $keys is array with one string.

Scrapbook v 1.4.5
PHP 7.2