There was a variation for the Vintage Collection Clone Trooper VC15 figure. The first released figure didn't have the stripes on the helmet. Have a look at the comparison pictures below, the first release is on the left, the corrected version is on the right.
VC15 Clone Trooper (Revenge Of The Sith) variation, pictured on the left is the first version with no stripes on the helmet, on the right the corrected release.