dev/core#1564 Fix category name for a/b test temporary table

[scardinius]

against 5.22

We should create category name of temporary table for max of INT(10) UNSIGNED field civicrm_mailing.id.

This is a regression due to change in cc06bec

// CRM/Mailing/BAO/Recipients.php
->setCategory('srcmailing' . $sourceMailingId) // longer than 12 chars when mailing_id > 99

More info is here https://lab.civicrm.org/dev/core/issues/1564

[civibot]

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[seamuslee001]

Jenkins re test this please

Change makes sense marking as approved for merge