Steps to reproduce:

Create a trigger with some tags with one containing a comma like

_{a_tag = this is , a test}

_{class = ZABBIX}

Create an action that will run a command on zabbix server. The command is

echo {EVENT.TAGS} > /tmp/tags

Make the trigger fire

Result:
**

The file content is:

a_tag:this is , a test, class:ZABBIX_SERVER

You can notice that strings are not protected and make it difficult to parse with regex.

Expected:
I expect all values to be enclosed with quotes or comma protected