fixed a bug in dataman reliable mode for dealing with combined steps
fixed a bug in dataman reliable mode for dealing with combined steps

ornladios/ADIOS2,ornladios/ADIOS2,ornladios/ADIOS2,ornladios/ADIOS2,JasonRuonanWang/ADIOS2,ornladios/ADIOS2,JasonRuonanWang/ADIOS2,JasonRuonanWang/ADIOS2,JasonRuonanWang/ADIOS2,JasonRuonanWang/ADIOS2