[16.0][FIX] sale_discount_display_amount: fix onchange peformance#3706

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lmignon wants to merge 3 commits intoOCA:16.0from

acsone:16.0-fix-sale_discount_display_amount-lmi

Commits on Mar 2, 2026

[FIX] sale_discount_display_amount: fix onchange peformance
lmignon
committed
[IMP] sale_discount_display_amount: add "_has_discount" hook for flexible discount logic on SO lines.

nicolas-delbovier-acsone
authored and
lmignon
committed
[FIX] sale_discount_display_amount: fix error on "_has_discount" hook when currency_id is empty.

nicolas-delbovier-acsone
authored and
lmignon
committed