Update hadronnucleicorrelation.cxx

Author: njacazio

PWGLF/Tasks/Nuspex/hadronnucleicorrelation.cxx

@@ -1825,7 +1825,7 @@ struct HadronNucleiCorrelation {
     using BinningTypeMC = FlexibleBinningPolicy<std::tuple<decltype(getMultiplicity)>, aod::mccollision::PosZ, decltype(getMultiplicity)>;
     BinningTypeMC colBinningGen{{getMultiplicity}, {confVtxBins, confMultBins}, true};
 
-    for (const auto& [collision1, collision2] : soa::selfCombinations(colBinningGen, 5, -1, mcCollisions, mcCollisions)) {
+    for (const auto& [collision1, collision2] : soa::selfCombinations(colBinningGen, maxmixcollsGen.value, -1, mcCollisions, mcCollisions)) {
       const auto& cache1 = genCaches.at(collision1.globalIndex());
       const auto& cache2 = genCaches.at(collision2.globalIndex());