tdf#94449: special text attributes are not removed with paragraph style

commit 3c0805e1f4 introduced removal of
all character attributes applied to the complete paragraph if a paragraph
style was applied. This should not remove special attributes like index
entries, reference marks etc.

Change-Id: I6fe92066269da2cf10c871ca319faf6fda91f4be
Reviewed-on: https://gerrit.libreoffice.org/23591
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Oliver Specht <oliver.specht@cib.de>

sw/source/core/txtnode/txtedt.cxx

@@ -605,7 +605,8 @@ void SwTextNode::RstTextAttr(
         for (i = 0; i < m_pSwpHints->Count(); ++i)
         {
             SwTextAttr* pHint = m_pSwpHints->Get(i);
-            if (pHint->GetStart() != nStt)
+            if ( (isTXTATR_WITHEND(pHint->Which()) && RES_TXTATR_AUTOFMT != pHint->Which())
+                || pHint->GetStart() != nStt)
                 continue;
 
             const sal_Int32* pHintEnd = pHint->GetEnd();