Multi-select field not respected in batch search

The "Search by Financial Type" is a multi-select, but if you try to search by multiple values it fails validation (see screenshot 653 attached).

PR:https://github.com/civicrm/civicrm-core/pull/13121

added Concept approved triaged labels

added sig:bug label

The above is marked ready for merge.

changed milestone to %5.9

closed

mentioned in commit 0d18d79d