[sale_exceptions] Count stock from selected Warehouse
[sale_exceptions] Count stock from selected Warehouse

Rule should only count available stock from selected warehouse from sale order.
Without warehouse in context, it currently sums all stock available in all warehouses.
Eficent/sale-workflow,ddico/sale-workflow,open-synergy/sale-workflow,diagramsoftware/sale-workflow,brain-tec/sale-workflow,akretion/sale-workflow,brain-tec/sale-workflow,BT-cserra/sale-workflow,akretion/sale-workflow,acsone/sale-workflow,acsone/sale-workflow