When receiving email notifications for updated issues, a copy of the entire issue, including all bug notes, is sent. This makes it very difficult to grasp what has actually been changed, while on other issue tracking systems you e.g. instantly get told that this specific note has been added, reproducatiblity has been changed, etc, without all the other unneeded extra information.
In addition, issues with long discussions lead to huge emails because every bug note is sent along.

It would be nice if, at least optionally, only the changed part of the issue (e.g. reproducatiblity, severity, status, added comment, etc.) was sent in notification mails.