[NUI] Switch camera includes current camera's Unparent()

diff --git a/src/Tizen.NUI.Scene3D/src/public/Controls/SceneView.cs b/src/Tizen.NUI.Scene3D/src/public/Controls/SceneView.cs
index 10eada0..c0db71a 100755 (executable)
--- a/src/Tizen.NUI.Scene3D/src/public/Controls/SceneView.cs
+++ b/src/Tizen.NUI.Scene3D/src/public/Controls/SceneView.cs
@@ -354,6 +354,7 @@ namespace Tizen.NUI.Scene3D
             {
                 return;
             }
+            this.GetSelectedCamera()?.Unparent();
             Interop.SceneView.SelectCamera(SwigCPtr, index);
             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
         }
@@ -369,6 +370,7 @@ namespace Tizen.NUI.Scene3D
             {
                 return;
             }
+            this.GetSelectedCamera()?.Unparent();
             Interop.SceneView.SelectCamera(SwigCPtr, name);
             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
         }