fix ghost segments not being erased
fix ghost segments not being erased

RodolpheFouquet/gpac,ARSekkat/gpac,rauf/gpac,RodolpheFouquet/gpac,porcelijn/gpac,ARSekkat/gpac,gpac/gpac,porcelijn/gpac,Bevara/Access-open,rbouqueau/gpac_brew_travis,vladimir-kazakov/gpac,ARSekkat/gpac,rbouqueau/gpac_brew_travis,Bevara/Access-open,gpac/gpac,rbouqueau/gpac_brew_travis,vladimir-kazakov/gpac,rbouqueau/gpac,rbouqueau/gpac_brew_travis,gpac/gpac,aymanelyaagoubi/gpac,emmanouil/gpac,vladimir-kazakov/gpac,nguyen-viet-thanh-trung/gpac,porcelijn/gpac,rbouqueau/gpac,nguyen-viet-thanh-trung/gpac,emmanouil/gpac,Bevara/Access-open,emmanouil/gpac,rbouqueau/gpac,rbouqueau/gpac_brew_travis,aymanelyaagoubi/gpac,Bevara/Access-open,gpac/gpac,rauf/gpac,gpac/gpac,rauf/gpac,ARSekkat/gpac,RodolpheFouquet/gpac,aymanelyaagoubi/gpac,porcelijn/gpac,porcelijn/gpac,rbouqueau/gpac,ARSekkat/gpac,vladimir-kazakov/gpac,ARSekkat/gpac,rbouqueau/gpac,vladimir-kazakov/gpac,RodolpheFouquet/gpac,gpac/gpac,rauf/gpac,RodolpheFouquet/gpac,emmanouil/gpac,Bevara/Access-open,emmanouil/gpac,rauf/gpac,RodolpheFouquet/gpac,rbouqueau/gpac_brew_travis,gpac/gpac,gpac/gpac,Bevara/Access-open,emmanouil/gpac,vladimir-kazakov/gpac,nguyen-viet-thanh-trung/gpac,rauf/gpac,rbouqueau/gpac,nguyen-viet-thanh-trung/gpac,rbouqueau/gpac,aymanelyaagoubi/gpac,rbouqueau/gpac,porcelijn/gpac,nguyen-viet-thanh-trung/gpac,nguyen-viet-thanh-trung/gpac,aymanelyaagoubi/gpac,aymanelyaagoubi/gpac