diff --git a/src/Mod/Sketcher/App/Constraint.cpp b/src/Mod/Sketcher/App/Constraint.cpp
index 1fd90f435..35e78685e 100644
--- a/src/Mod/Sketcher/App/Constraint.cpp
+++ b/src/Mod/Sketcher/App/Constraint.cpp
@@ -97,6 +97,26 @@ Constraint *Constraint::clone(void) const
     return new Constraint(*this);
 }
 
+Constraint *Constraint::copy(void) const
+{
+    Constraint *temp = new Constraint();
+    temp->Value = this->Value;
+    temp->Type = this->Type;
+    temp->AlignmentType = this->AlignmentType;
+    temp->Name = this->Name;
+    temp->First = this->First;
+    temp->FirstPos = this->FirstPos;
+    temp->Second = this->Second;
+    temp->SecondPos = this->SecondPos;
+    temp->Third = this->Third;
+    temp->ThirdPos = this->ThirdPos;
+    temp->LabelDistance = this->LabelDistance;
+    temp->LabelPosition = this->LabelPosition;
+    temp->isDriving = this->isDriving;
+    // Do not copy tag, otherwise it is considered a clone, and a "rename" by the expression engine.
+    return temp;
+}
+
 PyObject *Constraint::getPyObject(void)
 {
     return new ConstraintPy(new Constraint(*this));
diff --git a/src/Mod/Sketcher/App/Constraint.h b/src/Mod/Sketcher/App/Constraint.h
index 11102e7f8..0a4bb5efa 100644
--- a/src/Mod/Sketcher/App/Constraint.h
+++ b/src/Mod/Sketcher/App/Constraint.h
@@ -71,7 +71,8 @@ public:
     Constraint();
     Constraint(const Constraint&);
     virtual ~Constraint();
-    virtual Constraint *clone(void) const;
+    virtual Constraint *clone(void) const; // does copy the tag, it will be treated as a rename by the expression engine.
+    virtual Constraint *copy(void) const; // does not copy the tag, but generates a new one
 
     static const int GeoUndef;
 
diff --git a/src/Mod/Sketcher/App/SketchObject.cpp b/src/Mod/Sketcher/App/SketchObject.cpp
index 1825413a0..9fb5b3090 100644
--- a/src/Mod/Sketcher/App/SketchObject.cpp
+++ b/src/Mod/Sketcher/App/SketchObject.cpp
@@ -49,7 +49,7 @@
 #include <boost/bind.hpp>
 
 #include <App/Document.h>
-#include <App/FeaturePythonPyImp.h>
+#include <App/FeaturePythonPyImp.h>
 #include <Base/Writer.h>
 #include <Base/Reader.h>
 #include <Base/Tools.h>
@@ -1951,7 +1951,7 @@ int SketchObject::addSymmetric(const std::vector<int> &geoIdList, int refGeoId,
                 if( (*it)->Type != Sketcher::DistanceX &&
                     (*it)->Type != Sketcher::DistanceY) {
 
-                    Constraint *constNew = (*it)->clone();        
+                    Constraint *constNew = (*it)->copy();        
 
                     constNew->First = geoIdMap[(*it)->First];
                     newconstrVals.push_back(constNew);
@@ -1972,7 +1972,7 @@ int SketchObject::addSymmetric(const std::vector<int> &geoIdList, int refGeoId,
                         (*it)->Type ==  Sketcher::Equal ||
                         (*it)->Type ==  Sketcher::Radius ||
                         (*it)->Type ==  Sketcher::PointOnObject ){
-                            Constraint *constNew = (*it)->clone();
+                            Constraint *constNew = (*it)->copy();
 
                             constNew->First = geoIdMap[(*it)->First];
                             constNew->Second = geoIdMap[(*it)->Second];
@@ -1999,7 +1999,7 @@ int SketchObject::addSymmetric(const std::vector<int> &geoIdList, int refGeoId,
                         std::vector<int>::const_iterator tit=std::find(geoIdList.begin(), geoIdList.end(), (*it)->Third);
 
                         if(tit != geoIdList.end()) { // Third is also in the list
-                            Constraint *constNew = (*it)->clone();
+                            Constraint *constNew = (*it)->copy();
                             constNew->First = geoIdMap[(*it)->First];
                             constNew->Second = geoIdMap[(*it)->Second];
                             constNew->Third = geoIdMap[(*it)->Third];
@@ -2182,20 +2182,20 @@ int SketchObject::addCopy(const std::vector<int> &geoIdList, const Base::Vector3
                                     (*it)->Type == Sketcher::Distance  ||
                                     (*it)->Type == Sketcher::Radius ) && clone ) {
                                     // Distances on a single Element are mapped to equality constraints in clone mode
-                                    Constraint *constNew = (*it)->clone();
+                                    Constraint *constNew = (*it)->copy();
                                     constNew->Type = Sketcher::Equal;
                                     constNew->Second = geoIdMap[(*it)->First]; // first is already (*it->First)
                                     newconstrVals.push_back(constNew);
                                 }
                                 else if ((*it)->Type == Sketcher::Angle && clone){
                                     // Angles on a single Element are mapped to parallel constraints in clone mode
-                                    Constraint *constNew = (*it)->clone();
+                                    Constraint *constNew = (*it)->copy();
                                     constNew->Type = Sketcher::Parallel;
                                     constNew->Second = geoIdMap[(*it)->First]; // first is already (*it->First)
                                     newconstrVals.push_back(constNew);
                                 }
                                 else {
-                                    Constraint *constNew = (*it)->clone();
+                                    Constraint *constNew = (*it)->copy();
                                     constNew->First = geoIdMap[(*it)->First];
                                     newconstrVals.push_back(constNew);
                                 }
@@ -2211,7 +2211,7 @@ int SketchObject::addCopy(const std::vector<int> &geoIdList, const Base::Vector3
                                     (*it)->Type == Sketcher::DistanceY ||
                                     (*it)->Type == Sketcher::Distance) && ((*it)->First == (*it)->Second) && clone ) {
                                     // Distances on a two Elements, which must be points of the same line are mapped to equality constraints in clone mode
-                                    Constraint *constNew = (*it)->clone();
+                                    Constraint *constNew = (*it)->copy();
                                     constNew->Type = Sketcher::Equal;
                                     constNew->FirstPos = Sketcher::none;
                                     constNew->Second = geoIdMap[(*it)->First]; // first is already (*it->First)
@@ -2219,7 +2219,7 @@ int SketchObject::addCopy(const std::vector<int> &geoIdList, const Base::Vector3
                                     newconstrVals.push_back(constNew);
                                 }
                                 else {
-                                    Constraint *constNew = (*it)->clone();
+                                    Constraint *constNew = (*it)->copy();
                                     constNew->First = geoIdMap[(*it)->First];
                                     constNew->Second = geoIdMap[(*it)->Second];
                                     newconstrVals.push_back(constNew);
@@ -2229,7 +2229,7 @@ int SketchObject::addCopy(const std::vector<int> &geoIdList, const Base::Vector3
                                 std::vector<int>::const_iterator tit=std::find(geoIdList.begin(), geoIdList.end(), (*it)->Third);
 
                                 if(tit != geoIdList.end()) { // Third is also in the list
-                                    Constraint *constNew = (*it)->clone();
+                                    Constraint *constNew = (*it)->copy();
                                     constNew->First = geoIdMap[(*it)->First];
                                     constNew->Second = geoIdMap[(*it)->Second];
                                     constNew->Third = geoIdMap[(*it)->Third];