Release Candidate 1.6.0-RC2

Changes since 1.6.0-RC1:

Bugs:

• OLMIS-8347: Fix the Pick Pack List showing only the products that were ordered and shipped as the very same orderable, leaving the report empty or almost empty whenever a trade item was picked against a commodity type order line. The UNION branch meant to map a shipped trade item onto its ordered commodity type still required order_li.orderableid = shipment_li.orderableid, never traversed trade_item_classifications, and applied an uncorrelated dispensable-attribute filter that matched everything. The branch now maps trade item to commodity type through the classification system and disambiguates candidates by dispensable attributes, so pack sizes such as Pentavalent (1 dose) and (10 dose) stay on their own order lines. The direct-match branch no longer requires the order line and the draft line to carry the same orderable version, so a product edited between requisition and packing stays on the report, and the dispensable-attribute comparison is case-insensitive like Dispensable.equals in referencedata. The UNION structure introduced for performance in OLMIS-8000 is kept.