In the multi-company context, it is possible to create
an analytic account without a defined company.
The result is that the analytic account
will not have a currency.

A traceback will be triggered when calculating the
profitability of a project
(for example by changing its status when
the 'sale_timesheet' module is installed).

Solution:
Use the currency of the project.

Introduced by:
68b4ea69

opw-3292417

closes odoo/odoo#120885

Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>