Fix crash in TupleToolHerschel when multiple versions are present

Phys/DecayTreeTupleHerschel/src/TupleToolHerschel.cpp

 /*****************************************************************************\
-* (c) Copyright 2000-2019 CERN for the benefit of the LHCb Collaboration      *
+* (c) Copyright 2000-2022 CERN for the benefit of the LHCb Collaboration      *
 *                                                                             *
 * This software is distributed under the terms of the GNU General Public      *
 * Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".   *
@@ -294,9 +294,10 @@ StatusCode TupleToolHerschel::fill( Tuples::Tuple& tup ) {
   if ( hrc_fom > 0 ) log_hrc_fom = std::log( hrc_fom );
   if ( hrc_fom_B > 0 ) log_hrc_fom_B = std::log( hrc_fom_B );
   if ( hrc_fom_F > 0 ) log_hrc_fom_F = std::log( hrc_fom_F );
-  test &= tup->column( prefix + "log_hrc_fom" + "_v" + std::to_string( m_hrcFomVnum ), log_hrc_fom );
-  test &= tup->column( prefix + "log_hrc_fom_B" + "_v" + std::to_string( m_hrcFomVnum ), log_hrc_fom_B );
-  test &= tup->column( prefix + "log_hrc_fom_F" + "_v" + std::to_string( m_hrcFomVnum ), log_hrc_fom_F );
+  test &= tup->column( prefix + "log_hrc_fom_version", m_hrcFomVnum );
+  test &= tup->column( prefix + "log_hrc_fom", log_hrc_fom );
+  test &= tup->column( prefix + "log_hrc_fom_B", log_hrc_fom_B );
+  test &= tup->column( prefix + "log_hrc_fom_F", log_hrc_fom_F );
 
   // Fill ADC vectors
   std::vector<double> adcB, adcF;