Check for orphaned tickets

[koratalas]

This instance check helps identifying all the tickets without assignment groups.

[niamccash]

Thanks for your contribution! The check should work as is and I'll accept/merge your PR now but I would recommend that the check be improved to avoid the GlideRecord query you have in the script. The query is a call to the database and too many of those can slow down your platform so it's always a good practice to be judicious about how/when you use them (ie. not use them if you don't have to).

In this case, you should be able to add to the condition directly in the Check without having to script it as you already have the Incident record available.

Feel free to submit another PR if you want to try and improve this check.