When Anakin is on the conveyor belt his lightsaber is cut in half. When he’s fighting Count Dooku a little later he has it again. How did he get it?
Mace winced when he spotted Obi-Wan, Anakin, and Padmé sent flying into the air by the terrified and bucking reek. He motioned to other Jedi, but needn’t have, for those closest were already rushing toward their vulnerable companions, throwing lightsabers to Anakin and Obi-Wan.
When those two ignited their blades, Anakin’s green and Obi-Wan’s blue, and Padmé came up between them, a discarded blaster pistol in hand, Mace breathed a bit easier.