When writing a workorder start or end date from its manufacturing order
(and if the MO is unplanned), an error is thrown
Steps to reproduce:
1. Install Manufacturing
2. Go to Settings > Manufacturing > Operations and enable Work Orders
3. Open an MO with Work Orders
4. Unplan the MO
5. Add a Scheduled End Date to one of the Work Orders
6. Save
7. An error is thrown
Solution:
Compute the new duration only if both `start_date` and `end_date` are
set (and one of `date_planned_start` and `date_planned_finished` is
passed in values)
Problem:
When only one of `date_planned_start` or `date_planned_finished` is
written on an `mrp_workorder` (and the other is not set), the method
`_calculate_duration_expected` is called but it fails because it passes
a False value instead of a datetime which will raise the error `'bool'
object has no attribute 'tzinfo'`
opw-3004280
closesodoo/odoo#103927
X-original-commit: 35a596dbbc4e2e55461bf7e5e8ae12873249d4af
Signed-off-by: William Henrotin (whe) <whe@odoo.com>
Signed-off-by: Guillaume Merlin (megu) <megu@odoo.com>