1 Commits (ca6fb004ac50fc924861112403895d637c6a2d1d)

Author SHA1 Message Date
mrsdizzie 944d904980 Include thread related headers in issue/coment mail (#7484)
* Include thread related headers in issue/coment mail

Make it so mail programs will group comments from an issue into the same
thread by setting Message-ID on initial issue and then using In-Reply-To
and References headers to reference that later on.

* Add tests

* more tests

* fix typo
5 years ago