Comment 6 for bug 381239

Chris,

You did have binaries for boost1.35 in you repository once:

https://edge.launchpad.net/~spring/+archive/ppa?field.name_filter=boost&field.status_filter=any&field.series_filter=any

Copies will conflict with deleted versions as well, similar to what we do for uploads.

To solve you problem you can re-package the source with a new version, slower than the next mainline one, and wait for reconcile the versions in the next opportunity.