Jira Server Scriptrunner - how to prevent dupes synching comments

[Jon Starbird]

I have two projects, service desk project and dev project, that I am attempting to have comments sync between Cloned issues for these projects. I have it setup with Two listeners, one for each project, and then having it sync on the comment events. 

However, they end up triggering each other. 

How can I prevent that? 

[Jon Starbird · Accepted solution]

Answered myself. 

Just need to add the corresponding Issue Key to the beginning of each new comment that is synched, then in the each Listener have it ignore new comments with the the key from the other project in the comment body.