Describe the bug

If you change the value for Bulk Walk Maximum Repetitions on the SNMP-Options Page the value is not written to the DB

To Reproduce

Steps to reproduce the behavior:

1. Go to '/cacti/automation_snmp.php?action=item_edit&item_id=4&id=1'

2. Change 'Bulk Walk Maximum Repetitions' from Auto to '1 Repetition'

3. Save

4. Reopen Item

Expected behavior

1 Repetition should be saved