Issue #1783: ObjectDB internal error on 2.6.5 for some query which worked on 2.6.4

Following query caused NULL pointer exception. Also this query worked fine on ObjectDb 2.6.4b6.

SELECT $1 FROM Pa3DataKey $1  WHERE (LOWER($1.publicDataItems.get('Sender')) == 'test' AND LOWER($1.publicDataItems.get('RAT')) == 'lte' ) AND (($1.parentId IN (0)) AND ($1.keyDescriptor.name="MESSAGE" OR $1.keyDescriptor.name="CONTEXT")) ORDER BY $1.timestamp

1. Priority HIGH since affected customers.

2. Attached screenshot + database exampe

Thank you for this report. It seems to be related to the previous regression issue that you found.

Build 2.6.5_01 should fix it.