Purpose
=======
To be able to customize the working flow on the lead, based on their
team, we add a properties field on leads, whose definition is stored
on their team.
Include the properties value in the merge message to keep the history
of the properties value if they have been overwritten during the merge
process.
Task-2965523
X-original-commit: 4722cc4b1fb027b7b9d731c3b206656588071360
Part-of: odoo/odoo#101487
std-odoo
17335f13fd