[opensuse-buildservice] removed packages, wiped binaries -- built package still hangin' around

In a private OBS instance, I ran into a problem that remains unresolved. I deleted a package and found that other packages were still using it for build. In an attempt to fix this (weird) situation, I even wiped *all* of the binaries for the project. No dice. After logging into the actual build server, I found in: /srv/obs/build/$PROJECT/$REPO/$ARCH/:full only two files -- the *name* of the built package with two extensions: .rpm and .meta. What happened here? Clearly there seems to be a bug, but where? More importantly for the time being, how do I remediate? I'll note that the publishing of the package was disabled before it was deleted altogether. Perhaps that is relevant? I'm on openSUSE 12.1 with OBS 2.3