As much as it goes against my grain to feed trolls (why else go on about tangents?)... "What else do you want?" How about an explanation, as indicated in the original message?
doesn't really explain why things have gone awry.
The "work-around" is in name only. The code is the result of parsing user input, and there may be any number of ways of triggering this behavior... again, as indicated in the original message. Some people want band-aids or magic pills, others want to know what caused the accident.
If I'd expected the perl 5.6 tree to be fixed (unlikely without concrete knowledge of what the issue is), I'd have filed a perlbug, and linked it. Instead, I was simply hoping for some inisight and, umm, *wisdom*.
In Bob We Trust, All Others Bring Data.