Description of problem:

On a system migrated to pulp3
attempting to publish a yum CV, which includes a repo with "Ignorable Content: Source RPM" fails

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Create yum CV containing:
 custom repo of fake errata[1]
 and repo with source RPM and select to exclude the source files "Ignorable Content: Source RPM"
2. sync
3. migrate to Pulp3
4. attempt to publish to Library

Actual results:

State: paused
Error message: the server returns an error
HTTP status code: 400
Response headers: {"Date"=>"Tue, 23 Feb 2021 16:23:37 GMT", "Server"=>"gunicorn/20.0.4", "Content-Type"=>"application/json", "Vary"=>"Accept,Cookie", "Allow"=>"POST, OPTIONS", "X-Frame-Options"=>"SAMEORIGIN", "Content-Length"=>"55", "Via"=>"1.1 dhcp-2-116.vms.sat.rdu2.redhat.com", "Connection"=>"close"}
Response body: ["URI not valid: 02f61824-8465-46b3-85a1-cf1c921867bc"]

Action:

Actions::Pulp3::Repository::MultiCopyContent

Exception:

PulpRpmClient::ApiError: Error message: the server returns an error
HTTP status code: 400
Response headers: {"Date"=>"Tue, 23 Feb 2021 16:23:37 GMT", "Server"=>"gunicorn/20.0.4", "Content-Type"=>"application/json", "Vary"=>"Accept,Cookie", "Allow"=>"POST, OPTIONS", "X-Frame-Options"=>"SAMEORIGIN", "Content-Length"=>"55", "Via"=>"1.1 dhcp-2-116.vms.sat.rdu2.redhat.com", "Connection"=>"close"}
Response body: ["URI not valid: 02f61824-8465-46b3-85a1-cf1c921867bc"]

Expected results:

CV is published and promoted to Library


Additional info:
[1] https://stephenw.fedorapeople.org/fakerepos/multiple_errata/
[2] https://partha.fedorapeople.org/test-repos/repo-with-src-rpm/