cfdump reveals incorrect results

After much digging around in code to make sure it wasn't something we did I discoverd that cfc instances that we have cached in the session scope are having methods from other session based cfc instances stuffed into them automatically.  While this bleed of methods from other cfc's appears in a cfdump the methods can not be invoked.  Upon trying to invoke one of these bled over methods the error received is: Function does not exist.  This leads me to believe that the methods are not really bleeding over but instead I believe its has something to do with a problem with cfdump in CF9.  This issue did not exist in CF7.