coverity#1396676 Uninitialized pointer field

Change-Id: I7d7557485fe603f49ae176378ef41539ebe4970c
(cherry picked from commit 211925e144849ad14469a1a6c6451f61fcf369cf)
diff --git a/sc/source/ui/unoobj/styleuno.cxx b/sc/source/ui/unoobj/styleuno.cxx
index d1237348..1a6e8e90 100644
--- a/sc/source/ui/unoobj/styleuno.cxx
+++ b/sc/source/ui/unoobj/styleuno.cxx
@@ -943,11 +943,12 @@ void SAL_CALL ScStyleFamilyObj::removeVetoableChangeListener( const OUString&, c

//  Default-ctor wird fuer die Reflection gebraucht

ScStyleObj::ScStyleObj(ScDocShell* pDocSh, SfxStyleFamily eFam, const OUString& rName) :
    pPropSet( (eFam == SfxStyleFamily::Para) ? lcl_GetCellStyleSet() : lcl_GetPageStyleSet() ),
    pDocShell( pDocSh ),
    eFamily( eFam ),
    aStyleName( rName )
ScStyleObj::ScStyleObj(ScDocShell* pDocSh, SfxStyleFamily eFam, const OUString& rName)
    : pPropSet( (eFam == SfxStyleFamily::Para) ? lcl_GetCellStyleSet() : lcl_GetPageStyleSet() )
    , pDocShell(pDocSh)
    , eFamily(eFam)
    , aStyleName(rName)
    , pStyle_cached(nullptr)
{
    //  pDocShell ist Null, wenn per ServiceProvider erzeugt