Jira service management creates new issue instead of adding comment, when the user replies to their own email.
For example,
1. A@test.com sends an email to B@test.com
2. Before B@test.com replies to A's email, a sends email again
(for correcting type, etc...)
In step 1, JSM creates new issue. (expected).
But in step 2, JSM creates new issue again! (unexpected).
When I analyze the raw email, the email header is empty. But I thought JSM can detect the existing issue with summary (email title).
Why this happens?
And what condition changes or remove the 'In-Reply-To'?
This mechanism give me very hard work that deletes a lot of duplicated issue.