BUG: acousticDamping - set the blending factor after reading the coefficients

src/fvOptions/sources/derived/acousticDampingSource/acousticDampingSource.C

@@ -206,6 +206,8 @@ bool Foam::fv::acousticDampingSource::read(const dictionary& dict)
             Info<< name_ << ": Setting stencil width to " << w_ << endl;
         }
 
+        setBlendingFactor();
+
         return true;
     }
     else