Version
Katello nightly
Pulpcore 3.18.5
pulp-rpm 3.17.5

Describe the bug
I created an alternate content source with the following RH CDN path: https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/advanced-virt/os

At refresh time, I saw the following error:

{
"pulp_href": "/pulp/api/v3/tasks/fa96f3a4-1b2b-4530-a0b4-b6adf4fdc3e5/",
"pulp_created": "2022-07-25T21:03:44.164063Z",
"state": "failed",
"name": "pulp_rpm.app.tasks.synchronizing.synchronize",
"logging_cid": "660e71d7-6c15-4dda-a381-b2f9f19ca743",
"started_at": "2022-07-25T21:03:44.196268Z",
"finished_at": "2022-07-25T21:03:44.441820Z",
"error":

{ "traceback": " File \"/usr/local/lib/python3.9/site-packages/pulpcore/tasking/pulpcore_worker.py\", line 410, in _perform_task\n result = func(*args, **kwargs)\n File \"/usr/lib/python3.9/site-packages/pulp_rpm/app/tasks/synchronizing.py\", line 464, in synchronize\n remote_url = fetch_remote_url(remote, url)\n File \"/usr/lib/python3.9/site-packages/pulp_rpm/app/tasks/synchronizing.py\", line 292, in fetch_remote_url\n raise ValueError(\n", "description": "Remote URL https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/advanced-virt/os for Alternate Content Source is invalid" }

,
"worker": "/pulp/api/v3/workers/1591cc69-60de-4f06-b566-5ff37311759f/",
"parent_task": null,
"child_tasks": [],
"task_group": "/pulp/api/v3/task-groups/ba681a0b-44fc-4390-bbe7-a13434ad2a18/",
"progress_reports": [],
"created_resources": [],
"reserved_resources_record": [
"shared:/pulp/api/v3/acs/rpm/rpm/e69b2e9f-22f6-4310-9265-64fcb8bc586b/",
"shared:/pulp/api/v3/remotes/rpm/rpm/43c602fd-305d-4765-8695-42c792ec0b84/"
]
}

To Reproduce
Steps to reproduce the behavior:

Create an ACS with the appropriate remote configuration to sync the repository above.
Refresh the ACS

Expected behavior
The ACS refreshes without error.

Additional context
Remote options:

{:tls_validation=>true,
:name=>"Advanced_Virtualization_for_RHEL_8_x86_64_RPMs-12300",
:url=>"https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/advanced-virt/os",
:proxy_url=>nil,
:proxy_username=>nil,
:proxy_password=>nil,
:total_timeout=>3600,
:connect_timeout=>60,
:sock_connect_timeout=>60,
:sock_read_timeout=>3600,
:rate_limit=>0,
:username=>nil,
:password=>nil,
:client_cert=> 'redacted',
:client_key=>'redacted',
:ca_cert=>'redacted',
:policy=>"on_demand"
}