[IMP] stock: inventory line product_qty readonly

Moves the readonly condition for the `product_qty` field into the model
to have the same condition in the barcode app (enterprise).

task-2123726

addons/stock/models/stock_inventory.py

@@ -341,6 +341,7 @@ class InventoryLine(models.Model):
         required=True, readonly=True)
     product_qty = fields.Float(
         'Counted Quantity',
+        readonly=True, states={'confirm': [('readonly', False)]},
         digits='Product Unit of Measure', default=0)
     categ_id = fields.Many2one(related='product_id.categ_id', store=True)
     location_id = fields.Many2one(

addons/stock/views/stock_inventory_views.xml

@@ -46,8 +46,7 @@
                 <button name="action_refresh_quantity" string="Refresh quantity" title="Refresh quantity"
                         icon="fa-refresh" type="object"
                         attrs="{'invisible': [('outdated', '=', False)]}"/>
-                <field name="product_qty" attrs="{'readonly': [('state', '!=', 'confirm')]}"
-                       width="0.5" string="Counted"/>
+                <field name="product_qty" width="0.5" string="Counted"/>
                 <field name="difference_qty" optional="show" width="0.5"/>
                 <field name="product_uom_id" string="UoM" groups="uom.group_uom"
                        width="0.3" force_save="1"/>