Resolves: #i119512# selection lost if there is blank item selected...

in page filed of Pivot Table

Found by: shan zhu
Patch by: bjcheny
Review by: Yolanda Zhang Ying

(cherry picked from commit 305986a4)

Conflicts:
	oox/source/xls/pivottablebuffer.cxx

Change-Id: Ied8ca19738e9b2e7bb596010f7ae9e308792fcbc

sc/source/filter/oox/pivottablebuffer.cxx

@@ -578,8 +578,7 @@ void PivotTableField::convertPageField( const PTPageFieldModel& rPageField )
                 if( const PivotCacheItem* pSharedItem = pCacheField->getCacheItem( nCacheItem ) )
                 {
                     OUString aSelectedPage = pSharedItem->getName();
-                    if( !aSelectedPage.isEmpty() )
-                        aPropSet.setProperty( PROP_SelectedPage, aSelectedPage );
+                    aPropSet.setProperty( PROP_SelectedPage, aSelectedPage );
                 }
             }
         }