Orbital indpendent meta-GGA energies are incorrectly dependent on KED
The orbital independent versions of several meta-GGA functionals produce energies that have a spurious dependence on the value of the KED passed to Libxc. If I pass the following sets of input to MGGA_X_R2SCANL, the energy can be seen to change when the KED is set to 0.0 when there should be no dependence on KED.
Taking the above input for the Rho, Sigma and the Laplacian and iterating through values of KED results in the attached plot of Energy per unit particle versus KED.
The functionals that I have tested and found this error present for are