[FIX] stock: scrap order with 0 quantity

currently odoo is allowing to create a scrap order record with 0 quantty, which doesn't make sense and also if it is allowed, user wont be able to edit change the quantity later. currently zero quantity is not blocked by _check_positive_qty_done on stock.move.line. And it doesn't make sense to scrap 0, thus preventing the same by raising a validation

closes odoo/odoo#105752

X-original-commit: eb899fe8dda12d0f0e4ae515bb01e65981f4fbcd
Signed-off-by: Arnold Moyaux (arm) <arm@odoo.com>

addons/stock/i18n/stock.pot

@@ -9042,6 +9042,12 @@ msgstr ""
 msgid "You can only delete draft moves."
 msgstr ""
 
+#. module: stock
+#: code:addons/stock/models/stock_scrap.py:0
+#, python-format
+msgid "You can only enter positive quantities."
+msgstr ""
+
 #. module: stock
 #: code:addons/stock/models/stock_move_line.py:0
 #, python-format

addons/stock/models/stock_scrap.py

@@ -3,7 +3,7 @@
 
 from odoo import _, api, fields, models
 from odoo.exceptions import UserError
-from odoo.tools import float_compare
+from odoo.tools import float_compare, float_is_zero
 
 
 class StockScrap(models.Model):
@@ -171,6 +171,9 @@ class StockScrap(models.Model):
 
     def action_validate(self):
         self.ensure_one()
+        if float_is_zero(self.scrap_qty,
+                         precision_rounding=self.product_uom_id.rounding):
+            raise UserError(_('You can only enter positive quantities.'))
         if self.product_id.type != 'product':
             return self.do_scrap()
         precision = self.env['decimal.precision'].precision_get('Product Unit of Measure')