Limit variable scope

Change-Id: I42d2e59297a70c977ec2f7782b403c1f79c434de
Reviewed-on: https://gerrit.libreoffice.org/61875
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

sw/source/core/layout/flowfrm.cxx

@@ -1416,9 +1416,9 @@ SwTwips SwFlowFrame::CalcUpperSpace( const SwBorderAttrs *pAttrs,
     // OD 06.01.2004 #i11859#
     {
         const IDocumentSettingAccess& rIDSA = m_rThis.GetUpper()->GetFormat()->getIDocumentSettingAccess();
-        const bool bUseFormerLineSpacing = rIDSA.get(DocumentSettingId::OLD_LINE_SPACING);
         if( pPrevFrame )
         {
+            const bool bUseFormerLineSpacing = rIDSA.get(DocumentSettingId::OLD_LINE_SPACING);
             const bool bContextualSpacing = pAttrs->GetULSpace().GetContext()
                                          && lcl_getContextualSpacing(pPrevFrame)
                                          && lcl_IdenticalStyles(pPrevFrame, &m_rThis);