[FIX] hr_timesheet: create timesheet with default employee in context

Before this commit, the default employee set in the context to create a
timesheet is unused in the create method.

This commit uses the context to set the employee when no user and no
employee are given in the vals parameter.

task-2702636

Part-of: odoo/odoo#108605

addons/hr_timesheet/models/hr_timesheet.py

@@ -145,12 +145,13 @@ class AccountAnalyticLine(models.Model):
                 continue
             if not vals.get('name'):
                 vals['name'] = '/'
-            employee_id = vals.get('employee_id')
-            user_id = vals.get('user_id', default_user_id)
+            employee_id = vals.get('employee_id', self._context.get('default_employee_id', False))
             if employee_id and employee_id not in employee_ids:
                 employee_ids.append(employee_id)
-            elif user_id not in user_ids:
-                user_ids.append(user_id)
+            else:
+                user_id = vals.get('user_id', default_user_id)
+                if user_id not in user_ids:
+                    user_ids.append(user_id)
 
         # 2/ Search all employees related to user_ids and employee_ids, in the selected companies
         employees = self.env['hr.employee'].sudo().search([
@@ -176,7 +177,7 @@ class AccountAnalyticLine(models.Model):
         for vals in vals_list:
             if not vals.get('project_id'):
                 continue
-            employee_in_id = vals.get('employee_id')
+            employee_in_id = vals.get('employee_id', self._context.get('default_employee_id', False))
             if employee_in_id:
                 if employee_in_id in valid_employee_per_id:
                     vals['user_id'] = valid_employee_per_id[employee_in_id].sudo().user_id.id   # (A) OK

addons/hr_timesheet/tests/test_timesheet.py

@@ -555,3 +555,12 @@ class TestTimesheet(TestCommonTimesheet):
         self.project_customer.analytic_account_id.company_id = False
         timesheet = self.env['account.analytic.line'].with_user(self.user_employee).create({'unit_amount': 1.0, 'project_id': self.project_customer.id})
         self.assertFalse(timesheet.product_uom_id, "The product_uom_id of the timesheet should be set to False for its analytic account has no company_id")
+
+    def test_create_timesheet_with_default_employee_in_context(self):
+        timesheet = self.env['account.analytic.line'].with_context(default_employee_id=self.empl_employee.id).create({
+            'project_id': self.project_customer.id,
+            'task_id': self.task1.id,
+            'name': 'Timesheet with default employee in context',
+            'unit_amount': 3,
+        })
+        self.assertEqual(timesheet.employee_id, self.empl_employee)