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ISA-Frontend/libs/remission/feature
Nino Righi 2af16d92ea Merged PR 1916: fix(remission-helpers, remission-list-item): fix predefinedReturnQuantity han...
fix(remission-helpers, remission-list-item): fix predefinedReturnQuantity handling and enhance stock validation

Fix issue where predefinedReturnQuantity value of 0 was being treated differently
from undefined in mandatory remission (Pflichtremission). Now both 0 and undefined
are handled consistently by changing the initial value to undefined and using
truthy check instead of strict undefined comparison.

Additionally enhance hasStockToRemit validation by requiring both availableStock
and stockToRemit to be greater than 0, preventing invalid remission states when
no stock is available.

Changes:
- Change predefinedReturnQuantity initial value from 0 to undefined in getStockToRemit
- Remove nullish coalescing operator that forced 0 default for predefinedReturnQuantity
- Update calculateStockToRemit to use truthy check (!predefinedReturnQuantity)
  instead of strict undefined comparison
- Enhance hasStockToRemit computed property to validate both availableStock > 0
  and stockToRemit > 0
- Add comprehensive test coverage for all hasStockToRemit edge cases including
  negative values and zero combinations

Ref: #5269
2025-08-13 09:50:18 +00:00
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