Comment 1 for bug 993426

I can't reproduce it.
As I didn't use my lucid pbuilder for some time, I updated it before I tried it (note: I use a precise host).

# apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 15331454B72FD7EC
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys 15331454B72FD7EC
gpg: keyring `/etc/apt/secring.gpg' created
gpg: requesting key B72FD7EC from hkp server keyserver.ubuntu.com
gpg: /etc/apt/trustdb.gpg: trustdb created
gpg: key B72FD7EC: public key "Launchpad PPA for Rolf Leggewie" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
# apt-key list
/etc/apt/trusted.gpg
--------------------
pub 1024D/437D05B5 2004-09-12
uid Ubuntu Archive Automatic Signing Key <email address hidden>
sub 2048g/79164387 2004-09-12

pub 1024R/B72FD7EC 2009-01-19
uid Launchpad PPA for Rolf Leggewie