spatial test fix

Author: TorkelE

test/spatial_modelling/lattice_reaction_systems.jl

@@ -154,7 +154,7 @@ let
     @test isequal(ModelingToolkit.get_metadata(lrs), "Metadata string")
     @test isequal(ModelingToolkit.get_eqs(lrs), rxs)
     @test isequal(ModelingToolkit.get_unknowns(lrs), [X, X2])
-    @test isequal(ModelingToolkit.get_ps(lrs), [p, d, kB, kD, Initial(X), Initial(X2)])
+    @test isequal(ModelingToolkit.get_ps(lrs), [p, d, kB, kD])
     @test isequal(ModelingToolkit.get_systems(lrs), [])
     @test isequal(independent_variables(lrs), [t])
 end