[FIX] account: accrued SO/PO process

* the cache_invalidate() was invalidating the changes made in the wizard as well, make it impossible to set any value other than the default one, even though the preview entry was updated accordingly. That also prevented to simply validate the wizard as the accrual account was required but reset anytime we changed its value.
* the preview_data field was incorrectly set as Binary while the widget only supports Text

Part-of: odoo/odoo#76037

addons/account/wizard/accrued_orders.py

@@ -52,7 +52,7 @@ class AccruedExpenseRevenue(models.TransientModel):
         check_company=True,
         domain=_get_account_domain,
     )
-    preview_data = fields.Binary(compute='_compute_preview_data')
+    preview_data = fields.Text(compute='_compute_preview_data')
     display_amount = fields.Boolean(compute='_compute_display_amount')
 
     @api.depends('date', 'amount')
@@ -126,6 +126,7 @@ class AccruedExpenseRevenue(models.TransientModel):
             raise UserError(_('Entries can only be created for a single company at a time.'))
 
         orders_with_entries = []
+        fnames = []
         for order in orders:
             total_balance = 0.0
             total_amount_currency = 0.0
@@ -164,16 +165,18 @@ class AccruedExpenseRevenue(models.TransientModel):
                         account = order_line.product_id.property_account_expense_id or order_line.product_id.categ_id.property_account_expense_categ_id
                         amount = self.company_id.currency_id.round(order_line.qty_to_invoice * order_line.price_unit / rate)
                         amount_currency = order_line.currency_id.round(order_line.qty_to_invoice * order_line.price_unit)
+                        fnames = ['qty_to_invoice', 'qty_received', 'qty_invoiced', 'invoice_lines']
                     else:
                         account = order_line.product_id.property_account_income_id or order_line.product_id.categ_id.property_account_income_categ_id
                         amount = self.company_id.currency_id.round(order_line.untaxed_amount_to_invoice / rate)
                         amount_currency = order_line.untaxed_amount_to_invoice
+                        fnames = ['qty_to_invoice', 'untaxed_amount_to_invoice', 'qty_invoiced', 'qty_delivered', 'invoice_lines']
                     inc_exp_accounts[account]['amount'] += amount
                     inc_exp_accounts[account]['amount_currency'] += amount_currency
                     total_balance += amount
                     total_amount_currency += amount_currency
                 # must invalidate cache or o can mess when _create_invoices().action_post() of original order after this
-                self.invalidate_cache()
+                order.order_line.invalidate_cache(fnames=fnames)
 
             if not self.company_id.currency_id.is_zero(total_balance):
                 orders_with_entries.append(order)