comment.txt is not working

[ch.b]

Hello

I use repeater with:
- mode II only
- Only allow ID : 1234
- comment.txt with ID=1234 and Comment=TOTO

The viewer connect with ID+TOTO:1234
but it also can connect with ID:1234 (without TOTO)

This is a big security issue !

What is wrong in my configuration ?
Thank you for your help