[CF-Dev] invalid cfid values

[Damian Watson <damian@greenhouse-design.co.uk>]

Hi,

I'm getting a strange error after a cflocation- doubled up CFID and 
CFTOKEN values are getting sent in the URL and causing the following:

Error Occurred While Processing Request


 CFID, CFTOKEN contains invalid characters.

This exception is caused by either broken links, or security attacks. 
The invalid id is 10,10


Anyone know why this might happen?

I know of a workaround but would rather understand what was going on...

Cheers
d