QPR-11618 fix

Author: pcaspers

QuantExt/qle/models/lgmfdsolver.cpp

@@ -45,7 +45,7 @@ RandomVariable LgmFdSolver::stateGrid() const { return mesherLocations_; }
 
 const boost::shared_ptr<LinearGaussMarkovModel>& LgmFdSolver::model() const { return model_; }
 
-RandomVariable LgmFdSolver::rollback(const RandomVariable& v, const Real t1, const Real t0, const Size steps) const {
+RandomVariable LgmFdSolver::rollback(const RandomVariable& v, const Real t1, const Real t0, Size steps) const {
     if (steps == Null<Size>())
         steps = std::max<Size>(1, static_cast<Size>(static_cast<double>(timeStepsPerYear_) * (t1 - t0) + 0.5));
     Array workingArray(v.size());

QuantExt/qle/models/lgmfdsolver.hpp

@@ -46,8 +46,7 @@ class LgmFdSolver {
 
     /* roll back an deflated NPV array from t1 to t0 using the given number of steps or,
        if that is not given, the time steps per year specified in the constructor */
-    RandomVariable rollback(const RandomVariable& v, const Real t1, const Real t0,
-                            const Size steps = Null<Size>()) const;
+    RandomVariable rollback(const RandomVariable& v, const Real t1, const Real t0, Size steps = Null<Size>()) const;
 
     /* the underlying model */
     const boost::shared_ptr<LinearGaussMarkovModel>& model() const;