Feature Request Summary:
Add the "Is Not" operator for the Comment field condition in a Trigger.
Description/Use Cases:
For an email notification trigger, I'd like to include the latest public comment, but only if it is present for the current update (which caused the trigger execution). Otherwise, I don't want to include the latest public comment (since it'll be from a prior update), but still want to send an email with other ticket details.
Business impact of limitation or missing feature:
Unable to send different email messages depending on the (non)existence of a comment.
Other necessary information or resources:
We also discussed the possibility of making this logic using Liquid in the email body, but there is not a way to determine comment presence (at all) in Liquid.
Prior discussion of the lacking functionality - https://support.zendesk.com/hc/en-us/community/posts/4682501615386/comments/4684098661914

