[FIX] account: _prepare_analytic_line

The field "amount" in 'account.analytic.line' must be in the currency
of the 'account.move.line' record because the "currency_id" field is over
written in "addons/account/models/account_analytic_line.py" and
this field is related to the currency of the move linked to the
analytic line.

opw:666538

addons/account/models/account_move.py

@@ -1095,6 +1095,7 @@ class AccountMoveLine(models.Model):
         """ Prepare the values used to create() an account.analytic.line upon validation of an account.move.line having
             an analytic account. This method is intended to be extended in other modules.
         """
+        amount = (self.credit or 0.0) - (self.debit or 0.0)
         return {
             'name': self.name,
             'date': self.date,
@@ -1102,7 +1103,7 @@ class AccountMoveLine(models.Model):
             'unit_amount': self.quantity,
             'product_id': self.product_id and self.product_id.id or False,
             'product_uom_id': self.product_uom_id and self.product_uom_id.id or False,
-            'amount': (self.credit or 0.0) - (self.debit or 0.0),
+            'amount': self.company_currency_id.compute(amount, self.currency_id) if self.currency_id else amount,
             'general_account_id': self.account_id.id,
             'ref': self.ref,
             'move_id': self.id,