Missing value for Repeater field returns false

[szepeviktor]

<?php

function acf_fix_repeater_missing_value($value)
{
    return (false === $value) ? null : $value;
}

add_filter('acf/format_value/type=repeater', 'acf_fix_repeater_missing_value', 999, 1);

See https://github.com/szepeviktor/acf-get/blob/master/src/ACFget.php#L103