bugfix: removed reference to tmp field

src/turbulenceModels/compressible/LES/derivedFvPatchFields/wallFunctions/alphaSgsWallFunctions/alphaSgsJayatillekeWallFunction/alphaSgsJayatillekeWallFunctionFvPatchScalarField.C

@@ -191,7 +191,7 @@ void alphaSgsJayatillekeWallFunctionFvPatchScalarField::evaluate
     const label patchI = patch().index();
 
     const scalarField& muw = lesModel.mu().boundaryField()[patchI];
-    const scalarField& muSgsw = lesModel.muSgs()().boundaryField()[patchI];
+    const scalarField muSgsw = lesModel.muSgs()().boundaryField()[patchI];
 
     const scalarField& alphaw = lesModel.alpha().boundaryField()[patchI];
     scalarField& alphaSgsw = *this;

src/turbulenceModels/compressible/LES/derivedFvPatchFields/wallFunctions/alphaSgsWallFunctions/alphaSgsWallFunction/alphaSgsWallFunctionFvPatchScalarField.C

@@ -137,7 +137,7 @@ void alphaSgsWallFunctionFvPatchScalarField::evaluate
     const scalar Prt = lesModel.Prt().value();
 
     // Get the turbulent viscosity at the wall
-    const scalarField& muSgsw =
+    const scalarField muSgsw =
         lesModel.muSgs()().boundaryField()[patch().index()];
 
     operator==(muSgsw/Prt);