NOT PHP 8.1 compatible: passing null to parameter (explode deprecation)

[wssweb]

Preconditions (*)

1. Magento 2.4.5-p4
2. PHP 8.1^
3. /mageplaza/module-same-order-number (any version)

Steps to reproduce (*)

1. Have magento 2 running on PHP 8.1
2. Installed module-same-order-number via composer
3. try to invoice an order

Expected result (*)

1. Order invoices successfully
2. no system log errors

Actual result (*)

1. Order fails to invoice
2. syslog displays:
   main.CRITICAL: Exception: Deprecated Functionality: explode(): Passing null to parameter #2 ($string) of type string is deprecated in /home/html/vendor/mageplaza/module-same-order-number/Helper/Data.php on line 45 in /home/html/vendor/magento/framework/App/ErrorHandler.php:62

Solution (*)

Modify /vendor/mageplaza/module-same-number/Helper/Data.php line 45

old:
$this->applyForOption = explode(',', $this->getConfigGeneral('apply', $storeId));

new:
$this->applyForOption = explode(',', (string)$this->getConfigGeneral('apply', $storeId));