Meanmode in FieldConvert filter
Meanmode in FieldConvert filter fails (when using a 3DHom1D formulation) with error message:
No filenames specified.
The test is very small - run with:
mpiexec -np 4 IncNavierStokesSolver --io-format Hdf5 --npz 2 ChanFlow_3DH1D_FFT.xml