Fix for `TypeError: array_key_exists(): Argument #2 ($array) must be …

[francescbassas]

…of type array, null given a CRM_Core_DAO->copyValues()

I have not been able to identify the exact source of the error, but the fact is that after a series of updates, from Core to 5.71.1, Drupal modules, CiviCRM extensions and from PHP 8.0 to 8.1 for users with ACL permissions I get this error

TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given a CRM_Core_DAO->copyValues()

These users can practically do nothing.

This PR prevents the fatal error and restores normal operation for these users.

[civibot]

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[colemanw]

Thanks @francescbassas I'm ok with merging this, as you say it fixes a fatal error. But could you please check your server logs for a backtrace, or if it doesn't exist, enable the debug-backtrace setting, so we can pinpoint the error? I think this PR will put a band-aid on the problem but the problem will still exist if we don't track it down.

[francescbassas]

@colemanw sorry there is no more backtrace that the error message TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given a CRM_Core_DAO->copyValues() (línia 839 de /var/www/html/sites/all/modules/civicrm/CRM/Core/DAO.php).