Issue Summary

When users reply to JSM tickets via Slack through Atlassian Assist (JSM Chat), duplicate comments are created on the same issue. The duplicates appear 12-17 seconds apart with identical content from the same author*. When a network delay occurs,* both comments will eventually be successful.

This appears to be the same class of bug as https://jira.atlassian.com/browse/JSDCLOUD-13663 (NOTE: this was fixed for the email path only), where a failure in post-processing (e.g., request participant addition) after a comment is successfully created causes the entire operation to be retried, resulting in a duplicate comment.

Steps to Reproduce

1. Set up a JSM project with Atlassian Assist connected to a Slack channel
2. Create a ticket via the Slack channel
3. Reply to the ticket via Slack
4. Under certain conditions (i.e. when request participant addition encounters a transient failure), the comment is duplicated

Intermittent - not reproducible on demand, but consistent pattern when it occurs.

Expected Results

One comment is created per user reply in Slack.

Actual Results

Two identical comments are created, 12-17 seconds apart, with the same author and content.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available