CVS Integration Issue

[kaze0]

I tried to find an answer, but CVS is too short to search so I was having trouble even doing that.

Basically, CVS is definitely running the checkin.php when I commit, but apparently nothing is being sent to STDIN, so no notes are added to my bug reports.

I verified that the checkin.php works by doing
php mantis/core/checkin.php <<< "fixed issue #4 by accident"
That works fine

I verified that the checkin.php gets no STDIN parameters from CVSROOT by adding a few random echoes to the checkin.php
I always get "Comment does not reference any issues."

Any clues?

I'm running
Concurrent Versions System (CVS) 1.11.22 (client/server)