Typical for cold oil to act like that on a wet clutch. In addition to a grooved basket or other slightly worn components. Could simply be clutch adjustment also. That's why most newer bikes and aftermarket clutch levers have a "on the fly" adjustment for when the clutch and oil is hot or cold.
Mostly, I say it is normal for it to have a little clutch creep, shouldn't kill it though.
One of mine does it though, and I know it's not worn or out of adjustment, I just let it warm up a minute before taking off.