Nelson v. Attorney General of U.S., 685 F.3d 318 (3d Cir. May 22, 2012) (when a qualifying conviction stops the accrual of continuous presence, under INA 240A(d)(1), 8 U.S.C. 1229B(d)(1) for purposes of cancellation of removal, the noncitizen may not thereafter begin a new period); following Briseno"Flores v. Attorney General, 492 F.3d 226 (3d Cir. 2007); Matter of Mendoza-Sandino, 22 I. & N. Dec. 1236, 1241 (BIA 2000) (once an alien's period of continuous presence or residence is terminated by the stop-time provision, INA 240A(d)(1), 8 U.S.C. 1229B(d)(1) " through service of a notice to appear or commission of a specified offense " it does not restart, and the alien does not automatically begin accruing a new period following the cessation of the first one)