Merge topic '15755_Ability_to_write_exodus_sidesets_lost'

defedb5f

 Ensures the file is initialized through the first pass.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Cory Quammen <cory.quammen@kitware.com>
Merge-request: !1432

IO/Exodus/vtkExodusIIWriter.cxx

@@ -310,7 +310,7 @@ void vtkExodusIIWriter::WriteData ()
   this->RemoveGhostCells ();
 
   // move check parameters up here and then if there's a change, new file.
-  if (this->WriteAllTimeSteps && !newHierarchy)
+  if (this->WriteAllTimeSteps && this->CurrentTimeIndex != 0 && !newHierarchy)
     {
     if (!this->WriteNextTimeStep ())
       {