Failure with SF with systematics
While running with systematics enabled, the retrieval of the tau SF fails with
FinalVarsbbttAlg ERROR SG::ExcBadAuxVar: Attempt to retrieve nonexistent aux data item `::tau_effSF_Loose_NOSYS' (1331).
This is not present for the nominal case nor for systematics which do not affect taus. The issues shows up with TAUS_TRUEHADTAU_SME_TES_INSITUFIT__1down