[PWGLF] Strangeness V0 analysis pp: Fix missing centrality for antilambda (#13694)

Author: ercolessi

PWGLF/Tasks/Strangeness/v0postprocessing.cxx

@@ -494,7 +494,7 @@ struct v0postprocessing {
 
             if (candidate.isphysprimary() == 1) {
               registry.fill(HIST("hMassAntiLambda_MC"), candidate.massantilambda());
-              registry.fill(HIST("hMassVsPtAntiLambdaVsCentFT0M_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.massantilambda());
+              registry.fill(HIST("hMassVsPtAntiLambdaVsCentFT0M_MC"), candidate.v0pt(), candidate.multft0m(), candidate.massantilambda());
             } else if (std::abs(candidate.massantilambda() - o2::constants::physics::MassLambda0) < 0.01) {
               if (candidate.pdgcodemother() == -3312) {
                 registry.fill(HIST("hFDVsPtAntiLambdaVsMotherPt_DoubleCharged_MC"), candidate.v0pt(), candidate.v0motherpt(), candidate.multft0m());