ODBC OResultSet::ensureCacheForColumn initialise *all* new elements

e.g. when growing m_aRow from size 3 to size 10
(that is, columnIndex==9),
the old code was initialising only position 9
while it we need to initialise all new positions,
that is positions 3 to 9.

Change-Id: I6a51b816104e33fdd7773b68e254e9bea50110ef

connectivity/source/drivers/odbcbase/OResultSet.cxx

@@ -413,7 +413,7 @@ void OResultSet::ensureCacheForColumn(sal_Int32 columnIndex)
         return;
 
     m_aRow.resize(columnIndex + 1);
-    TDataRow::iterator i (m_aRow.begin() + uColumnIndex);
+    TDataRow::iterator i (m_aRow.begin() + oldCacheSize);
     const TDataRow::const_iterator end(m_aRow.end());
     for (; i != end; ++i)
     {