Set status to none when reassigning queued task pnode

app/models/task.py

@@ -312,6 +312,7 @@ class Task(models.Model):
                         logger.info("Processing node {} went offline, reassigning {}...".format(self.processing_node, self))
                         self.uuid = ''
                         self.processing_node = None
+                        self.status = None
                         self.save()
                     else:
                         # Task was running and processing node went offline

app/tests/test_api_task.py

@@ -585,6 +585,7 @@ class TestApiTask(BootTransactionTestCase):
 
         task.refresh_from_db()
         self.assertTrue(task.processing_node.id == another_pnode.id)
+        self.assertTrue(task.status == None)
 
         # Set task to queued, bring node offline
         task.status = status_codes.RUNNING