Unfortunately I don't know that either.
If it is not obvious how to change this its worth a bug report against Launchpad itself.
I know it is a terrible system and many people complain about it a lot.
For example look here: https://bugs.launchpad.net/launchpad/+bug/5977
Unfortunately the developers don't care.
Nevertheless, we should fight their ignorance.
Unfortunately I don't know that either. /bugs.launchpad .net/launchpad/ +bug/5977
If it is not obvious how to change this its worth a bug report against Launchpad itself.
I know it is a terrible system and many people complain about it a lot.
For example look here: https:/
Unfortunately the developers don't care.
Nevertheless, we should fight their ignorance.