assume modified if an index has no corresponding ScDBData (anymore)

Change-Id: I16cbc7d772f39c8778b8ba21a629ced6b0dbedeb

sc/source/core/tool/token.cxx

@@ -2684,7 +2684,7 @@ bool isDBDataModified( const ScDocument& rDoc, const formula::FormulaToken& rTok
     // Check if this DBData has been modified.
     const ScDBData* pDBData = rDoc.GetDBCollection()->getNamedDBs().findByIndex( rToken.GetIndex());
     if (!pDBData)
-        return false;
+        return true;
 
     return pDBData->IsModified();
 }