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-rw-r--r--sw/source/core/undo/unsect.cxx2
1 files changed, 1 insertions, 1 deletions
diff --git a/sw/source/core/undo/unsect.cxx b/sw/source/core/undo/unsect.cxx
index 0e2b42607dd8..34465b55e212 100644
--- a/sw/source/core/undo/unsect.cxx
+++ b/sw/source/core/undo/unsect.cxx
@@ -302,7 +302,7 @@ SwUndoDelSection::SwUndoDelSection(
SwNodeIndex const*const pIndex)
: SwUndo( UNDO_DELSECTION )
, m_pSectionData( new SwSectionData(rSection) )
- , m_pTOXBase( rSection.ISA( SwTOXBaseSection )
+ , m_pTOXBase( dynamic_cast<const SwTOXBaseSection*>( &rSection) != nullptr
? new SwTOXBase(static_cast<SwTOXBaseSection const&>(rSection))
: 0 )
, m_pAttrSet( ::lcl_GetAttrSet(rSection) )