Don't flash when cancelling TO form with invalid data

atst/forms/forms.py

@@ -30,9 +30,9 @@ class BaseForm(FlaskForm):
                     _data[field] = None
         return _data
 
-    def validate(self, *args, **kwargs):
+    def validate(self, *args, flash_invalid=True, **kwargs):
         valid = super().validate(*args, **kwargs)
-        if not valid:
+        if not valid and flash_invalid:
             flash("form_errors")
         return valid
 

atst/routes/task_orders/new.py

@@ -139,7 +139,7 @@ def cancel_edit(task_order_id=None, portfolio_id=None):
         else:
             form = TaskOrderForm(form_data)
 
-        if form.validate():
+        if form.validate(flash_invalid=False):
             task_order = None
             if task_order_id:
                 task_order = TaskOrders.update(task_order_id, **form.data)