Backport from 12.0 to 11.0 (commit: 3cbdfe88)

- Have two crm teams with the same team leader, and without team members
(team1, team2 as instance).
- Create a new lead, add as Salesperson the team leader, and as Sales
team the second previously created team (team2).
- Save the new lead.

Before this commit, when we save the lead, the sales team will change,
to set the default sales team for the chosen Salesperson, in this case
team1.

opw-2005924

closes odoo/odoo#33898

closes odoo/odoo#34327

Signed-off-by: Simon Goffin (sig) <sig@openerp.com>