Use indexed getToken()

Change-Id: I613105a14a5e834bd9ac915261303b1e058340dd
Reviewed-on: https://gerrit.libreoffice.org/67318
Tested-by: Jenkins
Reviewed-by: Matteo Casalin <matteo.casalin@yahoo.com>

sw/source/ui/fldui/flddok.cxx

@@ -175,10 +175,10 @@ void SwFieldDokPage::Reset(const SfxItemSet* )
     if( !IsRefresh() )
     {
         const OUString sUserData = GetUserData();
-        if (sUserData.getToken(0, ';').equalsIgnoreAsciiCase(USER_DATA_VERSION_1))
+        sal_Int32 nIdx{ 0 };
+        if (sUserData.getToken(0, ';', nIdx).equalsIgnoreAsciiCase(USER_DATA_VERSION_1))
         {
-            const OUString sVal = sUserData.getToken(1, ';');
-            const sal_uInt16 nVal = static_cast< sal_uInt16 >(sVal.toInt32());
+            const sal_uInt16 nVal = static_cast< sal_uInt16 >(sUserData.getToken(0, ';', nIdx).toInt32());
             if(nVal != USHRT_MAX)
             {
                 for(sal_Int32 i = 0; i < m_pTypeLB->GetEntryCount(); i++)