Works for me, but maybe I have Special Powerz in JIRA?
Yes, and I don't have those special powers...

Although PR are better, they're only good when dealing with code contribution, on a GitHub repo. My latest use-case for attachment is on JBDS, which still uses SVN/patched based process.
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Mickael Istria
Eclipse developer at JBoss, by Red Hat
My blog - My Tweets