Jira webhook creates new ticket when problem in zabbix is updated with new severity

When updating the issue, the webhook correctly parses the situation when the comment was added, but when the problem gets updated severity, it creates a new Jira Key in Jira and does not update the old Jira Key already raised for the same problem.

If there is a universal way to compare importance, then it would be great to add this functionality

It would also be great to have a description of the main features of the webhook in the documentation - this will also simplify situations when the user needs to add or change functionality of built-in webhooks

Regards, Elina