Pulp

This behavior was introduced with this commit. https://github.com/pulp/pulpcore/commit/47e5cc2a69464caaefbb50f994de03d72fb780e4

It affects RPM sync (because RPM content can have various checksum types) and migration plugin. Probably pulp_deb as well.

To reproduce:

• trigger on_demand sync for a repo with sha1 checksum type for content, e.g. https://packagecloud.io/timescale/timescaledb/el/7/x86_64/
• observe only one remote artifact in the db

pulp=> select url from core_remoteartifact;
                                                url                                                 
----------------------------------------------------------------------------------------------------
 https://packagecloud.io/timescale/timescaledb/el/7/x86_64/timescaledb-tools-0.8.1-0.el7.x86_64.rpm
(1 row)

If you try to fetch any content other than the one for which you have a remote artifact, you'll get 404.