[FIX] account: don't auto save on boolean widget

When creating a reconciliation model line on
a new record, by activate the boolean toggle on
`force_tax_included` field, the line is save
but as the reco model is not, `check_company`
will raise an error.

Steps:

- Create a new model
- Before saving, create a line, set a tax and
  click on Tax included toggle button
-> Error is raised

opw-3473189

closes odoo/odoo#132942

Signed-off-by: Brice Bartoletti (bib) <bib@odoo.com>