Comment 4 for bug 513201

As mentioned on bug 516448, building the same package in different series is probably something very desirable. That bug is about updating the schema and builder to support building the source package once, and then potentially re-building the binaries for different distroseries (ie. something that we've not done before).

But as a fall-back measure, the less efficient creation of 4 separate builds for the one recipe (mentioned by jml above) might be one good reason for having distroseries on the SPRBuild, as it seems we might want to allow it.