diff --git a/src/Mod/PartDesign/App/FeatureTransformed.cpp b/src/Mod/PartDesign/App/FeatureTransformed.cpp
index b32b8d4f8..f0ee0b0b3 100644
--- a/src/Mod/PartDesign/App/FeatureTransformed.cpp
+++ b/src/Mod/PartDesign/App/FeatureTransformed.cpp
@@ -41,6 +41,7 @@
 #include "FeatureSubtractive.h"
 #include "FeatureMirrored.h"
 #include "FeatureLinearPattern.h"
+#include "FeaturePolarPattern.h"
 
 #include <Base/Console.h>
 #include <Base/Exception.h>
@@ -87,6 +88,16 @@ App::DocumentObject* Transformed::getSketchObject() const
         const LinearPattern* pattern = static_cast<const LinearPattern*>(this);
         return pattern->Direction.getValue();
     }
+    else if (this->getTypeId().isDerivedFrom(PolarPattern::getClassTypeId())) {
+        // if Originals is empty then try the polar pattern's Axis property
+        const PolarPattern* pattern = static_cast<const PolarPattern*>(this);
+        return pattern->Axis.getValue();
+    }
+    else if (this->getTypeId().isDerivedFrom(Mirrored::getClassTypeId())) {
+        // if Originals is empty then try the mirror pattern's MirrorPlane property
+        const Mirrored* pattern = static_cast<const Mirrored*>(this);
+        return pattern->MirrorPlane.getValue();
+    }
     else {
         return 0;
     }
diff --git a/src/Mod/PartDesign/Gui/TaskLinearPatternParameters.cpp b/src/Mod/PartDesign/Gui/TaskLinearPatternParameters.cpp
index 30911452a..5d60d724d 100644
--- a/src/Mod/PartDesign/Gui/TaskLinearPatternParameters.cpp
+++ b/src/Mod/PartDesign/Gui/TaskLinearPatternParameters.cpp
@@ -429,10 +429,10 @@ bool TaskDlgLinearPatternParameters::accept()
             else
                 sketch = linearpatternParameter->getSupportObject();
 
-            QString buf = QString::fromUtf8("(App.ActiveDocument.%1,[\"%2\"])");
             if (sketch) {
+                QString buf = QString::fromLatin1("(App.ActiveDocument.%1,[\"%2\"])");
                 buf = buf.arg(QString::fromLatin1(sketch->getNameInDocument()));
-                buf = buf.arg(QString::fromUtf8(direction.c_str()));
+                buf = buf.arg(QString::fromLatin1(direction.c_str()));
                 Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.Direction = %s", name.c_str(), buf.toStdString().c_str());
             }
         } else
diff --git a/src/Mod/PartDesign/Gui/TaskMirroredParameters.cpp b/src/Mod/PartDesign/Gui/TaskMirroredParameters.cpp
index a2b2ff1c2..75907c15b 100644
--- a/src/Mod/PartDesign/Gui/TaskMirroredParameters.cpp
+++ b/src/Mod/PartDesign/Gui/TaskMirroredParameters.cpp
@@ -333,14 +333,19 @@ bool TaskDlgMirroredParameters::accept()
         TaskMirroredParameters* mirrorParameter = static_cast<TaskMirroredParameters*>(parameter);
         std::string mirrorPlane = mirrorParameter->getMirrorPlane();
         if (!mirrorPlane.empty()) {
-            QString buf = QString::fromUtf8("(App.ActiveDocument.%1,[\"%2\"])");
+            App::DocumentObject* sketch = 0;
             if (mirrorPlane == "H_Axis" || mirrorPlane == "V_Axis" ||
                 (mirrorPlane.size() > 4 && mirrorPlane.substr(0,4) == "Axis"))
-                buf = buf.arg(QString::fromUtf8(mirrorParameter->getSketchObject()->getNameInDocument()));
+                sketch = mirrorParameter->getSketchObject();
             else
-                buf = buf.arg(QString::fromUtf8(mirrorParameter->getSupportObject()->getNameInDocument()));
-            buf = buf.arg(QString::fromUtf8(mirrorPlane.c_str()));
-            Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.MirrorPlane = %s", name.c_str(), buf.toStdString().c_str());
+                sketch = mirrorParameter->getSupportObject();
+
+            if (sketch) {
+                QString buf = QString::fromLatin1("(App.ActiveDocument.%1,[\"%2\"])");
+                buf = buf.arg(QString::fromLatin1(sketch->getNameInDocument()));
+                buf = buf.arg(QString::fromLatin1(mirrorPlane.c_str()));
+                Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.MirrorPlane = %s", name.c_str(), buf.toStdString().c_str());
+            }
         } else
             Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.MirrorPlane = None", name.c_str());
         Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.recompute()");
diff --git a/src/Mod/PartDesign/Gui/TaskPolarPatternParameters.cpp b/src/Mod/PartDesign/Gui/TaskPolarPatternParameters.cpp
index fffc97b7c..dc83c5542 100644
--- a/src/Mod/PartDesign/Gui/TaskPolarPatternParameters.cpp
+++ b/src/Mod/PartDesign/Gui/TaskPolarPatternParameters.cpp
@@ -370,13 +370,18 @@ bool TaskDlgPolarPatternParameters::accept()
         TaskPolarPatternParameters* polarpatternParameter = static_cast<TaskPolarPatternParameters*>(parameter);
         std::string axis = polarpatternParameter->getAxis();
         if (!axis.empty()) {
-            QString buf = QString::fromUtf8("(App.ActiveDocument.%1,[\"%2\"])");
+            App::DocumentObject* sketch = 0;
             if (axis == "N_Axis")
-                buf = buf.arg(QString::fromUtf8(polarpatternParameter->getSketchObject()->getNameInDocument()));
+                sketch = polarpatternParameter->getSketchObject();
             else
-                buf = buf.arg(QString::fromUtf8(polarpatternParameter->getSupportObject()->getNameInDocument()));
-            buf = buf.arg(QString::fromUtf8(axis.c_str()));
-            Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.Axis = %s", name.c_str(), buf.toStdString().c_str());
+                sketch = polarpatternParameter->getSupportObject();
+
+            if (sketch) {
+                QString buf = QString::fromLatin1("(App.ActiveDocument.%1,[\"%2\"])");
+                buf = buf.arg(QString::fromLatin1(sketch->getNameInDocument()));
+                buf = buf.arg(QString::fromLatin1(axis.c_str()));
+                Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.Axis = %s", name.c_str(), buf.toStdString().c_str());
+            }
         } else
             Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.Axis = None", name.c_str());
         Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.Reversed = %u",name.c_str(),polarpatternParameter->getReverse());