cid#1399305 Uncaught exception

and

cid#1399345 Uncaught exception

Change-Id: Ibbd255a4aa1ebdc360f94b3030371da7b6a6602f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/195068
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>

sw/inc/fmthdft.hxx

@@ -36,6 +36,7 @@ class SW_DLLPUBLIC SwFormatHeader final : public SfxPoolItem, public sw::FrameFo
 {
     bool m_bActive;       ///< Only for controlling (creation of content).
 
+    void ImplDestroy();
 public:
     DECLARE_ITEM_TYPE_FUNCTION(SwFormatHeader)
     SwFormatHeader( bool bOn = false );
@@ -69,6 +70,7 @@ class SW_DLLPUBLIC SwFormatFooter final : public SfxPoolItem, public sw::FrameFo
 {
     bool m_bActive;       // Only for controlling (creation of content).
 
+    void ImplDestroy();
 public:
     DECLARE_ITEM_TYPE_FUNCTION(SwFormatFooter)
     SwFormatFooter( bool bOn = false );

sw/source/core/layout/atrfrm.cxx

@@ -516,12 +516,17 @@ SwFormatHeader::SwFormatHeader( bool bOn )
 {
 }
 
- SwFormatHeader::~SwFormatHeader()
+void SwFormatHeader::ImplDestroy()
 {
     if ( GetHeaderFormat() )
         lcl_DelHFFormat( this, GetHeaderFormat() );
 }
 
+SwFormatHeader::~SwFormatHeader()
+{
+    suppress_fun_call_w_exception(ImplDestroy());
+}
+
 bool SwFormatHeader::operator==( const SfxPoolItem& rAttr ) const
 {
     assert(SfxPoolItem::operator==(rAttr));
@@ -575,12 +580,17 @@ SwFormatFooter::SwFormatFooter( bool bOn )
 {
 }
 
- SwFormatFooter::~SwFormatFooter()
+void SwFormatFooter::ImplDestroy()
 {
     if ( GetFooterFormat() )
         lcl_DelHFFormat( this, GetFooterFormat() );
 }
 
+SwFormatFooter::~SwFormatFooter()
+{
+    suppress_fun_call_w_exception(ImplDestroy());
+}
+
 void SwFormatFooter::RegisterToFormat( SwFormat& rFormat )
 {
     rFormat.Add(*this);