Notice: Undefined offset: 18 in CRM_Member_Form_Task_Batch->buildQuickForm()
Getting lots of log reports of the form
Notice: Undefined offset: 18 in CRM_Member_Form_Task_Batch->buildQuickForm()
(line 144 of /.../civicrm/CRM/Member/Form/Task/Batch.php).
This is because the offending line is
CRM_Utils_System::isNull($entityColumnValue[$typeId])
and it should be
CRM_Utils_System::isNull($entityColumnValue[$typeId] ?? NULL)