How is it possible that Makise Kuris didn't survive in Steins Gate 0 even though Okabe saved her in the first season?

Okabe saved Makise in the end and deceived his old self into thinking she was murdered. But she was only unconscious from Okabe's taser. And that was Okabe's blood he spilled on her because of the murderer's knife, which he pointed at himself… so how is it possible that she's suddenly dead?