[FIX] hr_expense: Create an expense product with vendor taxes

Steps to reproduce the bug:

When trying to import or create a expense product with supplier taxes,
the supplier taxes were removed.

PS: The field vendor taxes is available in the expense product view

opw:2444551

closes odoo/odoo#65403

X-original-commit: 02d0591b73f5acd8c94e65cda3af1158c3a2254a
Signed-off-by: Simon Goffin (sig) <sig@openerp.com>
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

addons/hr_expense/models/product_template.py

@@ -15,7 +15,7 @@ class ProductTemplate(models.Model):
         for vals in vals_list:
             # When creating an expense product on the fly, you don't expect to
             # have taxes on it
-            if vals.get('can_be_expensed', False):
+            if vals.get('can_be_expensed', False) and not self.env.context.get('import_file'):
                 vals.update({'supplier_taxes_id': False})
         return super(ProductTemplate, self).create(vals_list)