Hi,
This is a missing feature in trac (https://trac.edgewall.org), our bug
tracking software.
The only workaround would be to use a login and identity management system,
this would create a single login for all Haiku websites and software (user
rating on HaikuDepot etc). However our web-team lacks the knowledge and
time to get one up and running, as well as keeping it up to date.
Regards,
Richard.