fix up dispatch of register_variables; fix up smoothing on initial data

src/SRHD/initialdata.jl

@@ -525,6 +525,7 @@ end
 
 initialdata_smooth!(env, P::Project, mesh::Mesh{FVElement}) = nothing
 function initialdata_smooth!(env, P::Project, mesh)
+  !isregistered(mesh.cache, :mu) && return
   @unpack D, S, tau = get_dynamic_variables(mesh.cache)
   @unpack mu = get_cell_variables(mesh.cache)
   bernstein = BernsteinReconstruction(mesh)

src/SRHD/setup.jl

@@ -163,7 +163,7 @@ function _register_variables!(mesh::Mesh2d, hrsc::HRSC.EntropyViscosity, prms)
 end
 
 
-function _register_variables!(mesh, tci::TCI.AbstractTCI, prms)
+function _register_variables!(mesh, tci::TCI.AbstractTCI)
   register_variables!(mesh.cache, cell_variablenames = (:flag,:D_flag,:S_flag,:tau_flag))
 end