CLI usage possibilities were reduced?

[hoijui]

I just installed current master as of today, and am testing:

1. The docu mentions git bug ls, but is seems not to exist anymore. Is there an other way to list issues?
2. The docu mentions git bug bridge configure, but is seems not to exist anymore. -> I want to add a second bridge to a second github remote on a local repo. I opened .git/config, and copy&pasted the entry, editing the owner field accordingly; that seems to work somewhat, though when I push to this bridge, it pushed 0 issues (and there are no issues in the github UI), even though I have 54 open issues locally.
3. what is the difference between git bug push and git bug bridge push (and same for pull)? I know it, but purely from CLI help messages, I could not deduce it.
4. Is it possible to pull form one github remote/bridge and push to an other?
5. It is git bug help but git bug bridge --help