**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):


from ast import literal_eval
from odoo import api, fields, models, _
class ResConfigSettings(models.TransientModel):
    _inherit = 'res.config.settings'
    has_accounting_entries = fields.Boolean(compute='_compute_has_chart_of_accounts')
    currency_id = fields.Many2one('res.currency', related="company_id.currency_id", required=True,
        string='Currency', help="Main currency of the company.")
    currency_exchange_journal_id = fields.Many2one(
        'account.journal',
        related='company_id.currency_exchange_journal_id',
        string="Exchange Gain or Loss Journal",
        domain=[('type', '=', 'general')],
        help='The accounting journal where automatic exchange differences will be registered')
    has_chart_of_accounts = fields.Boolean(compute='_compute_has_chart_of_accounts', string='Company has a chart of accounts')
    chart_template_id = fields.Many2one('account.chart.template', string='Template',
        domain="[('visible','=', True)]")
    code_digits = fields.Integer(string='# of Digits *', related='company_id.accounts_code_digits', help="No. of digits to use for account code")
    tax_calculation_rounding_method = fields.Selection([
        ('round_per_line', 'Round calculation of taxes per line'),
        ('round_globally', 'Round globally calculation of taxes '),
        ], related='company_id.tax_calculation_rounding_method', string='Tax calculation rounding method')
    module_account_accountant = fields.Boolean(string='Accounting')
    group_analytic_accounting = fields.Boolean(string='Analytic Accounting',
        implied_group='analytic.group_analytic_accounting')
    group_warning_account = fields.Boolean(string="Warnings", implied_group='account.group_warning_account')
    group_cash_rounding = fields.Boolean(string="Cash Rounding", implied_group='account.group_cash_rounding')
    module_account_asset = fields.Boolean(string='Assets Management')
    module_account_deferred_revenue = fields.Boolean(string="Revenue Recognition")