some data is only written for the 0th time step in XDMF files.
Interpolation data for quadratic meshes, cell data and integration point data is only written once for the zeroth time step in XDMF files. E.g.
- https://gitlab.opengeosys.org/ogs/ogs/-/blob/master/Tests/Data/ThermoHydroMechanics/Linear/Point_injection/pointheatsource_quadratic-mesh.prj: Paraview shows temperature_interpolated and pressure_interpolated only for zeroth time step and not for all timesteps.
- https://gitlab.opengeosys.org/ogs/ogs/-/blob/master/Tests/Data/ThermoRichardsMechanics/TaskCDECOVALEX2023/Decovalex-0.prj: strangely Paraview shows temperature_interpolated and pressure_interpolated for both time steps, but in the raw file on sees that it exists only once. Cell *_avg data is only shown for the zeroth time step. Paraview doesn't seem to be able to show integration point data (but I would suspect this is a paraview issue?) In the raw file one sees that it exists only once as well.