Yum Metadata Not Fully Rebuilt After Running Cleanup Tags task

The Yum metadata is not fully rebuilt after running the admin - cleanup tags task against a yum repo i.e. the repo's filelists, primary and other xml files are removed and not re-added.

To reproduce:

1. Upload two components to a hosted yum repo.
2. Tag one of those components.
3. Configure and run the cleanup tags task to run against this repo:
   • Ensure 'Deletes associated components' is checked.
   • Set the tag regex to the tag from step 2.
4. Run this task and from the logs also confirm the yum metadata rebuild runs.

Expected:
The tag and tagged component is removed, the yum metadata rebuild runs and all metadata files are rebuilt.

Actual:
The tag and tagged component is removed, the yum metadata rebuild run but the filelists, primary and other xml files are missing.

Workaround:
Run the 'Repair - Rebuild Yum repository metadata (repodata)' task against the affected repository.