**Impacted versions:** 11.0

**Steps to reproduce:** 

- Configures a user with access to several companies


![administrator odoo](https://user-images.githubusercontent.com/5775695/29488651-46b4cec2-84dd-11e7-9495-e8518e93d336.png)

**Current behavior:**

- In the accounting configuration there is shared field displayed by defects for the sales tax account and purchase tax account
![configure accounting odoo 1](https://user-images.githubusercontent.com/5775695/29488677-f5b53d12-84dd-11e7-8124-831b52423719.png)


**Expected behavior:**

The value of those fields depends on the company. The users that belong to different companies may see by default different values for the field on a given record

Video/Screenshot link (optional):


addons/account/models/chart_template.py
''' This is a utiliy function to help migrate the tags of taxes when the localization has been modified on stable version. If
    called accordingly in a post_init_hooked function, it will reset the tags set on taxes as per their equivalent template.
    Note: This unusual decision has been made in order to help the improvement of VAT reports on version 9.0, to have them more flexible
    and working out of the box when people are creating/using new taxes.
    '''
    env = api.Environment(cr, SUPERUSER_ID, {})
    xml_records = env['ir.model.data'].search([
        ('model', '=', 'account.tax.template'),
        ('module', 'like', 'l10n_%')
    ])
    tax_template_ids = [x['res_id'] for x in xml_records.sudo().read(['res_id'])]
    for tax_template in env['account.tax.template'].browse(tax_template_ids):
        tax_id = env['account.tax'].search([
            ('name', '=', tax_template.name),
            ('type_tax_use', '=', tax_template.type_tax_use),
            ('description', '=', tax_template.description)
        ])
        if len(tax_id.ids) == 1:
            tax_id.sudo().write({'tag_ids': [(6, 0, tax_template.tag_ids.ids)]})
def preserve_existing_tags_on_taxes(cr, registry, module):
    ''' This is a utility function used to preserve existing previous tags during upgrade of the module.'''
    env = api.Environment(cr, SUPERUSER_ID, {})
    xml_records = env['ir.model.data'].search([('model', '=', 'account.account.tag'), ('module', 'like', module)])
    if xml_records:
        cr.execute("update ir_model_data set noupdate = 't' where id in %s", [tuple(xml_records.ids)])
class AccountAccountTemplate(models.Model):