Invalid Snmp Table Rows on SNMP Walk

Since implementation of SNMP Set feature invalid SNMP Table content might be delivered when performing an SNMP Walk. The problem is caused by a changed internal Api which prevents the existing handling functions from proper detection of a column change. As a result, the new column will be started with an row index of '0'. This causes an additional row with index 0 and also the invalid table row oid ending with .0 (.0 is reserved for scalars)