I use JIRA at codehaus.org (as a user, not a committer), and find it frustrating that I can't locate the patches I submit to various projects to see if they've been incorporated.

You can currently search by "Reported by" or "Assignee", but I'd like to see a "Comment by" search option. This would allow me to quickly see all issues that I've been involved with, and follow-up on them.