Description of problem:
Having an on demand repo with not-yet-downloaded package, and attempting to upload the *same* package manually to some custom repo, that upload task fails in dynflow step:

Actions::Pulp3::Repository::SaveArtifact

with error:

{'non_field_errors': [ErrorDetail(string='There is already a package with: arch=noarch, checksum_type=sha256, epoch=0, name=penguin, pkgId=57d314cc6f5322484cdcd33f4173374de95c53034de5b1168b9291ca0ad06dec, release=1, version=0.9.1.', code='invalid')]}{'non_field_errors': [ErrorDetail(string='There is already a package with: arch=noarch, checksum_type=sha256, epoch=0, name=pike, pkgId=d18c68073ece073dc3ece72b7fa2011c180599e9698e456243c4faf9a8b9124a, release=1, version=2.2.', code='invalid')]}


Version-Release number of selected component (if applicable):
Sat 6.10.2
python3-pulpcore-3.14.9-1.el7pc.noarch
tfm-rubygem-katello-4.1.1.42-1.el7sat.noarch


How reproducible:
100%


Steps to Reproduce:
Very tiny reproducer:

wget https://repos.fedorapeople.org/repos/pulp/pulp/demo_repos/test_simple_errata/test-package-0.1-1.el6.noarch.rpm -O /tmp/test-package-0.1-1.el6.noarch.rpm

(
echo "product create --name product_repo_upload_bug --organization-id 1"
echo "repository create --name repo_synced --url https://repos.fedorapeople.org/repos/pulp/pulp/demo_repos/test_simple_errata/ --organization-id 1 --product product_repo_upload_bug --download-policy on_demand --content-type yum"
echo "repository synchronize --name repo_synced --organization-id 1 --product product_repo_upload_bug"
echo "repository create --name repo_upload --organization-id 1 --product product_repo_upload_bug --content-type yum"
echo "repository upload-content --path /tmp/test-package-0.1-1.el6.noarch.rpm --name repo_upload --content-type rpm --product product_repo_upload_bug --organization-id 1"
) | hammer -u admin -p redhat shell


Actual results:
the repository upload-content fails with:

Could not upload the content:
  Task ef2c7834-1522-4e8e-a410-a1e55240d4e2: Katello::Errors::Pulp3Error: {'non_field_errors': [ErrorDetail(string='There is already a package with: arch=noarch, checksum_type=sha256, epoch=0, name=test-package, pkgId=51ec9c4d020ef029bd87ef2612647fe77a186b3ae81c27d15c2e1d6dc07657b4, release=1.el6, version=0.1.', code='invalid')]}

Further error: the task is in running/error state, which cant be easily resumed.


Expected results:
Upload succeeds.


Additional info: