fix discount and tax fields

before, the field would always display the default value, regardless of the value set in the database

app/cp_nigeria/forms.py

@@ -118,8 +118,6 @@ def __init__(self, *args, **kwargs):
 
         super().__init__(*args, **kwargs)
         self.fields["discount"].validators.append(validate_not_zero)
-        self.initial["discount"] = 12.0
-        self.initial["tax"] = 7.5
 
     # def save(self, *args, **kwargs):
     #     ed = super().save(*args, **kwargs)

app/cp_nigeria/views.py

@@ -206,7 +206,12 @@ def cpn_scenario_create(request, proj_id=None, step_id=STEP_MAPPING["choose_loca
                 qs_report = ImplementationPlanContent.objects.filter(simulation=project.scenario.simulation)
                 if qs_report.exists() and economic_data.has_changed():
                     qs_report.delete()
-            economic_data = economic_data.save()
+            economic_data = economic_data.save(commit=False)
+            # set the initial values for discount and tax
+            economic_data.discount = 0.12
+            economic_data.tax = 0.075
+            economic_data.save()
+
             project = form.save(user=request.user, commit=False)
             project.economic_data = economic_data
             project.save()