Issue description

If we configure a Service Desk automation rule that alerts a user when a comment is added to an issue, when the rule is triggered, it keeps alerting the user in the issue indefinitely.
This behavior is happening with Service Desk 3.9.0, but was not happening with previous versions.

Steps to reproduce

• In a Service Desk project, create an automation rule that alerts a user when a comment is added to an issue
  
• Create an issue within the project
• Add a comment to the issue
• Refresh the issue

Expected Result

• The alert is added indefinitely to the issue
  
• The automation rule logs show that the rule is being triggered indefinitely:
  

Actual Result

The automation rule should detect that there is a loop and should prevent any additional comment to be added to the issue, like it used to be the case in 3.8.x:

Workaround

Go to the dark feature page: <JIRA-BASE-URL>/secure/SiteDarkFeatures!default.jspa
Click on the "Disable" button next to the dark feature sd.internal.base.off.thread.on.completion.events.enabled
With this dark deature disabled, the loop detection should work again and only one alert will be added to the issue.