What happens when lead jammer removers her helemt cover, and then puts it back on?

She looses lead jammer status for the remainder of that jam

.5.4 - Pass Procedure In order to transfer the Jammer position to the Pivot, a Jammer must remove the Jammer helmet cover and hand it to their teams Pivot. The Jammer helmet cover may not be handed off via other skaters or thrown. The Jammer helmet cover may not be taken off the Jammers head by the Pivot or another skater. A Jammer who has removed, or whose teammate has removed, the Jammer helmet cover has forfeited: 3.5.4.1 - The ability to accrue points, unless the Jammer returns the Jammer helmet cover to their head with visible stars. 3.5.4.2 - The Lead Jammer status.