Unable to start CouchDB in background through a psuedo-tty

CouchDB crashes when started as a background process in a psuedo-tty.

Steps to reproduce:

On a machine that you can ssh into localhost do:

ssh -tt localhost "/path/to/couchdb -b"

When the connection closes, CouchDB will be killed.

A few things I've discovered while debugging

When I do

ssh -tt localhost "~/build-couchdb/build/bin/couchdb -b && sleep 10 && curl localhost:5984"

The output from the command is:

Apache CouchDB has started, time to relax.

{"couchdb":"Welcome","version":"1.2.1"}

Connection to localhost closed.

The contents or couchdb's stdout file is

Apache CouchDB 1.2.1 (LogLevel=info) is starting.
Apache CouchDB has started. Time to relax.
[info] [<0.32.0>] Apache CouchDB has started on http://127.0.0.1:5984/
[info] [<0.131.0>] 127.0.0.1 - - GET / 200

The contents of couchdb's stderr is

heart_beat_kill_pid = 32631
heart_beat_timeout = 11
heart: Mon Feb 4 07:31:57 2013: Erlang has closed.
heart: Mon Feb 4 07:31:58 2013: Executed "/home/ubuntu/build-couchdb/build/bin/couchdb -k" -> 0. Terminating.

This happens no matter how I start CouchDB: as a service, with the init script, with nohup, or with the command above. I built CouchDB using the build instructions for Ubuntu 12.04 from the wiki and using the build-couchdb project on Github.

The really odd thing is that this only happens when I start couchdb with `ssh -tt`. If I ssh into localhost and start couchdb in the background, it will continue running after I exit the ssh session.