[FIX] account: aml linked to statement
[FIX] account: aml linked to statement

When fetching the journal items linked to a bank statement, the
counterpart items are not retrievd since they are not directly linked to
the bank statement. It makes the entries look unbalanced.

Closes #13673
opw-690231

Elico-Corp/odoo_OCB,ygol/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,microcom/odoo,hip-odoo/odoo,ygol/odoo,microcom/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,storm-computers/odoo,dfang/odoo,dfang/odoo,hip-odoo/odoo,dfang/odoo,laslabs/odoo,hip-odoo/odoo,storm-computers/odoo,ygol/odoo,laslabs/odoo,bplancher/odoo,microcom/odoo,Elico-Corp/odoo_OCB,hip-odoo/odoo,bplancher/odoo,dfang/odoo,laslabs/odoo,storm-computers/odoo,bplancher/odoo,Elico-Corp/odoo_OCB,microcom/odoo,laslabs/odoo,ygol/odoo,storm-computers/odoo,laslabs/odoo,ygol/odoo,dfang/odoo,bplancher/odoo,dfang/odoo,microcom/odoo,ygol/odoo,storm-computers/odoo,hip-odoo/odoo,microcom/odoo,hip-odoo/odoo,bplancher/odoo,laslabs/odoo,ygol/odoo,bplancher/odoo