diff --git a/tests/src/Mod/PartDesign/App/BackwardCompatibility.cpp b/tests/src/Mod/PartDesign/App/BackwardCompatibility.cpp
new file mode 100644
index 0000000000..42689b5fa9
--- /dev/null
+++ b/tests/src/Mod/PartDesign/App/BackwardCompatibility.cpp
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#include <gtest/gtest.h>
+#include <BRep_Tool.hxx>
+#include <TopoDS.hxx>
+#include <TopExp_Explorer.hxx>
+#include "src/App/InitApplication.h"
+
+#include <App/Application.h>
+#include <App/Document.h>
+#include <Mod/PartDesign/App/FeatureChamfer.h>
+
+// NOLINTBEGIN(readability-magic-numbers,cppcoreguidelines-avoid-magic-numbers)
+
+class BackwardCompatibilityTest: public ::testing::Test
+{
+protected:
+    static void SetUpTestSuite()
+    {
+        tests::initApplication();
+    }
+
+    void SetUp() override
+    {
+        _testPath = App::Application::getHomePath() + "tests/TestModels/";
+    }
+
+    void TearDown() override
+    {
+        App::GetApplication().closeDocument(_doc->getName());
+    }
+
+    const App::Document* getDocument() const
+    {
+        return _doc;
+    }
+
+    void setDocument(App::Document* doc)
+    {
+        _doc = doc;
+    }
+
+    std::string getTestPath() const
+    {
+        return _testPath;
+    }
+
+private:
+    App::Document* _doc = nullptr;  // NOLINT Can't be private in a test framework
+    std::string _testPath;          // NOLINT Can't be private in a test framework
+};
+
+TEST_F(BackwardCompatibilityTest, TestOpenV021Model)
+{
+
+    // arrange
+
+    auto doc = App::GetApplication().openDocument(
+        std::string(getTestPath() + "ModelFromV021.FCStd").c_str());
+    setDocument(doc);
+
+    auto chamfer = dynamic_cast<PartDesign::Chamfer*>(doc->getObject("Chamfer"));
+    auto chamferEdgesNames = chamfer->Base.getSubValues();
+
+    std::vector<TopoDS_Shape> chamferOriginalEdges {};
+    for (const auto& chamferEdgesName : chamferEdgesNames) {
+        chamferOriginalEdges.push_back(
+            chamfer->getBaseTopoShape().getSubTopoShape(chamferEdgesName.c_str()).getShape());
+    }
+
+    // act
+
+    doc->recompute();
+    chamfer = dynamic_cast<PartDesign::Chamfer*>(doc->getObject("Chamfer"));
+    chamferEdgesNames = chamfer->Base.getSubValues();
+
+    // assert
+
+    auto checkSameVertexes = [](const TopoDS_Shape& e1, const TopoDS_Shape& e2) {
+        TopExp_Explorer e1Vertexes(e1, TopAbs_VERTEX);
+        TopExp_Explorer e2Vertexes(e2, TopAbs_VERTEX);
+
+        bool sameCoords {true};
+        bool moreToCheck {e1Vertexes.More() && e2Vertexes.More()};
+
+        // If one of the vertexes doesn't have the same coordinates of the other one then it'll be
+        // useless to continue
+        while (moreToCheck && sameCoords) {
+            auto p1 = BRep_Tool::Pnt(TopoDS::Vertex(e1Vertexes.Current()));
+            auto p2 = BRep_Tool::Pnt(TopoDS::Vertex(e2Vertexes.Current()));
+
+            sameCoords &= (p1.X() == p2.X() && p1.Y() == p2.Y() && p1.Z() == p2.Z());
+            e1Vertexes.Next();
+            e2Vertexes.Next();
+
+            moreToCheck = (e1Vertexes.More() && e2Vertexes.More());
+
+            // Extra check: both edges should have the same number of vertexes (e*Vertexes.More()
+            // should be true or false at the same time for both the edges).
+            // If this doesn't happen then one of the edges won't have enough vertexes to perform a
+            // full coordinates comparison.
+            // This shouldn't happen, so it's here just in case
+            sameCoords &= (e1Vertexes.More() == e2Vertexes.More());
+        }
+
+        return sameCoords;
+    };
+
+    EXPECT_TRUE(checkSameVertexes(
+        chamfer->getBaseTopoShape().getSubTopoShape(chamferEdgesNames[0].c_str()).getShape(),
+        chamferOriginalEdges[0]));
+    EXPECT_TRUE(checkSameVertexes(
+        chamfer->getBaseTopoShape().getSubTopoShape(chamferEdgesNames[1].c_str()).getShape(),
+        chamferOriginalEdges[1]));
+    EXPECT_TRUE(checkSameVertexes(
+        chamfer->getBaseTopoShape().getSubTopoShape(chamferEdgesNames[2].c_str()).getShape(),
+        chamferOriginalEdges[2]));
+    EXPECT_TRUE(checkSameVertexes(
+        chamfer->getBaseTopoShape().getSubTopoShape(chamferEdgesNames[3].c_str()).getShape(),
+        chamferOriginalEdges[3]));
+}
+
+// NOLINTEND(readability-magic-numbers,cppcoreguidelines-avoid-magic-numbers)
diff --git a/tests/src/Mod/PartDesign/App/CMakeLists.txt b/tests/src/Mod/PartDesign/App/CMakeLists.txt
index 007fd820de..48583700bc 100644
--- a/tests/src/Mod/PartDesign/App/CMakeLists.txt
+++ b/tests/src/Mod/PartDesign/App/CMakeLists.txt
@@ -2,7 +2,22 @@
 target_sources(
         PartDesign_tests_run
         PRIVATE
+        ${CMAKE_CURRENT_SOURCE_DIR}/BackwardCompatibility.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/DatumPlane.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/ShapeBinder.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Pad.cpp
 )
+
+set(PartDesignTestData_Files
+        TestModels/ModelFromV021.FCStd
+)
+
+ADD_CUSTOM_TARGET(PartDesignTestData ALL
+        SOURCES ${PartDesignTestData_Files}
+)
+
+fc_target_copy_resource(PartDesignTestData
+        ${CMAKE_CURRENT_SOURCE_DIR}
+        ${CMAKE_BINARY_DIR}/tests
+        ${PartDesignTestData_Files}
+)
diff --git a/tests/src/Mod/PartDesign/App/TestModels/ModelFromV021.FCStd b/tests/src/Mod/PartDesign/App/TestModels/ModelFromV021.FCStd
new file mode 100644
index 0000000000..2a062d8361
Binary files /dev/null and b/tests/src/Mod/PartDesign/App/TestModels/ModelFromV021.FCStd differ