REST API
Bugfixes
- Taught PulpImport to retry in the event of a concurrency-collision on ContentArtifact.
[2102](https://github.com/pulp/pulpcore/issues/2102)
- Fixed import/export of repositories with sub-content.
An example would be the sub-repositories in pulp_rpm
DistributionTrees.
[2192](https://github.com/pulp/pulpcore/issues/2192)
- touch() now uses standard Django instead of raw-sql to update.
[2229](https://github.com/pulp/pulpcore/issues/2229)
- PulpImporter now unpacks into the task-worker's working directory rather than /tmp. Unpacking
large files into /tmp could cause the operation to fail, or even cause stability issues for
Pulp instance, due to running /tmp out of space.
[2247](https://github.com/pulp/pulpcore/issues/2247)