Comment 1 for bug 475808

Pre-implementation notes:

AFAICS, this will affect any (delayed) copy where the source package release component has been overridden from a component not in the distroseries.upload_components.

The issue is that, for delayed copies, the component is not yet overridden when the PackageUpload is accepted, as it does not yet have a publishing history. The check that is happening during acceptFromCopy() ends up at PackageUploadSource.checkComponentAndSection() which currently only considers the SourcePackageRelease.

So, I plan to add a caveat to PackageUploadSource.checkComponentAndSection() that will, for delayed copies, use the component from the (soon-to-be) ancestry, rather than the SPR.