This is a Limnoria plugin for MantisBT.
It is used by MantisBT's IRC bot, mantisbot, which lurks in the
Freenode
#mantisbt channel.
https://github.com/mantisbt/supybot-mantis
The original Supybot plugin was written in 2008 by Gianluca Sforna, and has been improved by several contributors.
In 2021, Damien Regad updated the plugin to support Python 3.