Index: Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLines/ReferenceLineImporter.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -rb2d9f258140f5f690bc585ce52d348a04f5a644a
--- Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLines/ReferenceLineImporter.cs	(.../ReferenceLineImporter.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/ReferenceLines/ReferenceLineImporter.cs	(.../ReferenceLineImporter.cs)	(revision b2d9f258140f5f690bc585ce52d348a04f5a644a)
@@ -99,7 +99,7 @@
         {
             var clearReferenceLineDependentData = false;
 
-            if (ImportTarget.ReferenceLine != null)
+            if (ImportTarget.ReferenceLine.Points.Any())
             {
                 if (!replacementHandler.ConfirmReplace())
                 {
Index: Ringtoets/Integration/test/Ringtoets.Integration.Test/ReferenceLineImporterIntegrationTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -rb2d9f258140f5f690bc585ce52d348a04f5a644a
--- Ringtoets/Integration/test/Ringtoets.Integration.Test/ReferenceLineImporterIntegrationTest.cs	(.../ReferenceLineImporterIntegrationTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Test/ReferenceLineImporterIntegrationTest.cs	(.../ReferenceLineImporterIntegrationTest.cs)	(revision b2d9f258140f5f690bc585ce52d348a04f5a644a)
@@ -143,7 +143,7 @@
 
             // Then
             Assert.IsTrue(importSuccessful);
-            Assert.AreNotSame(originalReferenceLine, assessmentSection.ReferenceLine);
+            Assert.AreSame(originalReferenceLine, assessmentSection.ReferenceLine);
             Point2D[] point2Ds = assessmentSection.ReferenceLine.Points.ToArray();
             Assert.AreEqual(803, point2Ds.Length);
             Assert.AreEqual(198237.375, point2Ds[123].X, 1e-6);