When i create one web scenario with a step, the monitor data can be correctly received.But i modify remove the step and add the step with same name with previous step. The monitor data can not be correctly received.

I query the item from the database , and the web scenario item also not be created for the steps.

The detail steps:
1. create web scenario 1 - step 1 — monitor data ok
2. modify web scenario 1 - delete step 1 and add step1 — monitor data nok

The issue can be reproduced on zabbix version 3.0.3.