No, there’s no problem here. Launchpad will prevent you from uploading different orig tarballs with the _same filename_ to the _same PPA_, but the .xz tarball has a different filename, and you uploaded it to a different PPA.
No, there’s no problem here. Launchpad will prevent you from uploading different orig tarballs with the _same filename_ to the _same PPA_, but the .xz tarball has a different filename, and you uploaded it to a different PPA.