Copy packages to same PPA, different distro

[Dan]

Hi all, I am having trouble creating binaries for both Gutsy AND Hardy
in the same PPA. Here's what happened:

0) My package was initially made for Debian, so the most recent
changelog entry points to "unstable". Therefore,

1) I uploaded the source package to ~myname/ubuntu/hardy

2) The package built fine, and Hardy .deb's showed up in the PPA

3) I requested "Copy Packages" to the same PPA / target distro Gutsy,
without checking the "copy binary packages" checkbox

4) The package again built fine (the build logs contained no errors
and the PPA front page says my packages are published for Gutsy)

But I cannot find the Gutsy binaries. For example,

http://ppa.launchpad.net/myname/ubuntu/dists/gutsy/main/binary-i386/Packages

is empty (0 bytes in size)

Upon further inspection, I don't even see how this could work *in
principle*, since the Hardy .deb's in pool/main/m/mypackage have no
indication that they are Hardy-specific. That is, even if Gutsy .deb's
were built, they would have no place to go (short of over-riding the
Hardy .deb's in pool/main/...)

What am I doing wrong? What is the right way to create both Hardy and
Gutsy .deb's?

-- Dan