Steps to reproduce:
1. Install the Expenses and Contacts Apps
2. Go to the Contacts App
3. Add a bank account to the private address linked to a specific employee
4. Go to the Expenses App
5. Create an expense for the employee and try to register the payment
6. The bank account will not show up
Solution:
If the employee doesn't have a bank account selected in the Employee form, we select the first bank account of his private address
OPW-2655450
closesodoo/odoo#80774
X-original-commit: cb998c804a0e7b14393637f372f1f32051fd548d
Signed-off-by: Olivier Colson <oco@odoo.com>