Using Preslice instead of PresliceUnsorted

Author: gianniliveraro

PWGLF/TableProducer/Strangeness/sigma0builder.cxx

@@ -73,7 +73,7 @@ struct sigma0builder {
   // For manual sliceBy
   Preslice<V0DerivedMCDatas> perCollisionMCDerived = o2::aod::v0data::straCollisionId;
   Preslice<V0StandardDerivedDatas> perCollisionSTDDerived = o2::aod::v0data::straCollisionId;
-  PresliceUnsorted<soa::Join<aod::StraCollisions, aod::StraCents, aod::StraEvSels, aod::StraCollLabels>> perMcCollision = aod::v0data::straMCCollisionId;
+  Preslice<soa::Join<aod::StraCollisions, aod::StraCents, aod::StraEvSels, aod::StraCollLabels>> perMcCollision = aod::v0data::straMCCollisionId;
 
   // pack track quality but separte also afterburner
   // dynamic range: 0-31