- group.order.home_delivery is a stored compute field with no inverse;
Odoo still lets write() set it directly, so a stray direct write stuck
instead of always being re-derived from delivery_product_id. create()
and write() now strip it from vals, same pattern already used for slug.
- _find_recent_draft_order only bounded drafts by create_date, so a
freshly created draft for a stale/previous pickup_date (but created
"now") was wrongly reused. Fix requires both create_date to fall in
the active window AND pickup_date to match when set — the latter
alone isn't enough either, per the regression already covered by
test_find_recent_draft_excludes_previous_cycle (observed in
production at stage.elikabilbo.eus).
158933e96e