[Catalyst] Wrong content-length value (since 5.7001?)

[Paul Makepeace]

I've started receiving this error when re-POSTing multipart/form-data,
in essence after an upload hitting 'reload' and confirm,

[error] Caught exception in engine "Wrong Content-Length value: 9013
at /Library/Perl/5.8.6/Catalyst.pm line 1565"

I *think* this has appeared between 5.7000 and 5.7001

Any ideas what this might be?

Paul