* feat: Copy tags when sync library
* feat: Avoid delete object tag if is copied
* chore: Bump version of openedx-learning to 0.16.0
* test: Tests for copy paste library blocks
* feat: Sync tags when sync upstream
This introdues the idea of "upstream" and "downstream" content,
where downstreams (like course components) can pull content updates from
upstreams (like learning core-backed content library blocks). This
supports the upcoming Content Libraries Relaunch Beta for Sumac.
New features include:
* A new XBlockMixin: UpstreamSyncMixin.
* A new CMS Python API: cms.lib.xblock.upstream_sync
* A new CMS JSON API: /api/contentstore/v2/downstreams
* A temporary, very basic UI for syncing from Content Library blocks
Implements:
https://github.com/kdmccormick/edx-platform/blob/kdmccormick/upstream-proto/docs/decisions/0020-upstream-block.rst
Co-authored-by: Braden MacDonald <braden@opencraft.com>
