[FIX] hr_expense: expense name on pdf upload

When uploading a PDF, the expense name is showing
the 1st category of expense instead of the name
of the PDF.

opw-3339756

closes odoo/odoo#123608

X-original-commit: 7ec2bb68067e49ea5ab2bbd6598264ccb78cfd70
Signed-off-by: William André (wan) <wan@odoo.com>

addons/hr_expense/models/hr_expense.py

@@ -349,8 +349,9 @@ class HrExpense(models.Model):
             raise UserError(_("You need to have at least one category that can be expensed in your database to proceed!"))
 
         for attachment in attachments:
+            attachment_name = '.'.join(attachment.name.split('.')[:-1])
             expense = self.env['hr.expense'].create({
-                'name': product.display_name,
+                'name': attachment_name,
                 'unit_amount': 0,
                 'product_id': product.id,
             })