1) Copy source-only from one PPA to another.
2) Wait for builds in destination to finish and be uploaded, but not yet be published.
3) Try and fail to recopy source, this time with binaries.
4) Delete copied source from destination.
5) Recopy source and binaries, successfully this time.
6) Notice duplicate builds.
To reproduce:
1) Copy source-only from one PPA to another.
2) Wait for builds in destination to finish and be uploaded, but not yet be published.
3) Try and fail to recopy source, this time with binaries.
4) Delete copied source from destination.
5) Recopy source and binaries, successfully this time.
6) Notice duplicate builds.