Unnecessary cloning of JIRA issues

Why are JIRA issues cloned rather than just retargetted? Cloning will
split the comments over the differnet issues and make it more confusing
to talk about them.

If the issue was resolved with a target, then cycling them through 
Resolved->Applied->Closed->Open will open them and allow a new target
and resolution to be set.

For example now we have two open issues 3312 and 3680 for exactly the
same issue. The clone 3680 is not needed.

Andreas