BUG: When cloud is inactive, the transient flag needs to be read to avoid default value false and the unnecassary massFlowRate input

src/lagrangian/intermediate/clouds/Templates/KinematicCloud/cloudSolution/cloudSolution.C

@@ -63,6 +63,10 @@ Foam::cloudSolution::cloudSolution(const fvMesh& mesh, const dictionary& dict)
         {
             Info<< "Cloud source terms will be held constant" << endl;
         }
+
+        // transient default to false asks for extra massFlowRate
+        // in transient lagrangian
+        dict_.lookup("transient") >> transient_;
     }
 }