Submitting a package with an incorrect series causes the builder to spin

The bsbuilder is looking for binary packages that match a specific series (the one in the unit config file). If a package is submitted for a different series, bad things happen. The source package gets uploaded making the bsbuilder think it in the building stage, but it never finds the right binary packages and therefore waits forever.

Possible solution is to reject the package before uploading.

Users should be trained not to do this, but when it happens, it's not handled well.