Missing ScMergeFlagAttr::Clone

Change-Id: Iaaad0b4130d99bb3aa9edd434a1fc105c59c4c99

sc/inc/attrib.hxx

@@ -80,6 +80,8 @@ public:
             ScMergeFlagAttr(sal_Int16 nFlags);
             virtual ~ScMergeFlagAttr();
 
+    SfxPoolItem * Clone(SfxItemPool * pPool) const SAL_OVERRIDE;
+
     bool    IsHorOverlapped() const     { return ( GetValue() & SC_MF_HOR ) != 0;  }
     bool    IsVerOverlapped() const     { return ( GetValue() & SC_MF_VER ) != 0;  }
     bool    IsOverlapped() const        { return ( GetValue() & ( SC_MF_HOR | SC_MF_VER ) ) != 0; }

sc/source/core/data/attrib.cxx

@@ -149,6 +149,11 @@ ScMergeFlagAttr::~ScMergeFlagAttr()
 {
 }
 
+SfxPoolItem * ScMergeFlagAttr::Clone(SfxItemPool *) const
+{
+    return new ScMergeFlagAttr(*this);
+}
+
 bool ScMergeFlagAttr::HasPivotButton() const
 {
     return (GetValue() & SC_MF_BUTTON) != 0;