[ROOT-9558] [DF] RDataFrame Snapshot throws for branches with branch name!=variable name - SFTJIRA

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Hello,

The code

auto fileName = "HFntuple.root";

 auto treeName = "HFntupleNONE";

ROOT::RDataFrame d(treeName, fileName );

d.Snapshot("HFntupleNONE", "out.root");

results in

terminate called after throwing an instance of 'std::runtime_error'

 what(): Unknown column: btagSFCentral

The "unknown columns" have the property that the branch name is not the same as the variable name, e.g.

*Br 32 :btagSFCentral : btagSFCent/D *

Many thanks for your help. I attach an example root file here.

Cheers,

Kerim