Discussion seems to have concluded on this thread, and I've seen quite a
bit of use of the block-proposed-<series> tag now.
We (the SRU team) decided to continue with this feature, so I've
adjusted the SRU documentation to match:
Policy:
https://wiki.ubuntu.com/StableReleaseUpdates#Staging_low_priority_uploads
I think this section can probably grow over time to document common
cases and general decisions as we develop more experience over this.
Procedure:
https://wiki.ubuntu.com/StableReleaseUpdates#Staging_an_upload
I think all concerns in this thread have been addressed. If you think
anything needs adjusting, I'd appreciate the feedback.
Thanks,
Robie