RPM Support

My environment:

pulpcore - 3.14.5 pulp-rpm - 3.14.2 RHEL 8

I am fighting a weird performance issue. After a change to a remote that is attached to some repository (for example when a client certificate is changed), all further sync attempts for that repository involves reloading of the repository metadata and parsing it, even when no new content is available and no new repository version is created afterwards. This repeats for any subsequent sync attempt of that repo, and is a significant resource hog (eg. RHEL7 repos carry 30K+ packages). A sample task with progress reports looks like this:

      {
            "pulp_href": "/pulp/api/v3/tasks/a9ec4ba1-a804-483d-b9ae-02874a8f19ad/",
            "pulp_created": "2021-09-15T08:43:25.974820Z",
            "state": "running",
            "name": "pulp_rpm.app.tasks.synchronizing.synchronize",
            "logging_cid": "4bd0de408bce49f2932790a4c6075e5e",
            "started_at": "2021-09-15T09:03:54.732570Z",
            "finished_at": null,
            "error": null,
            "worker": "/pulp/api/v3/workers/0c1e8308-37a8-43e3-8a9b-fb91ebdc18b6/",
            "parent_task": null,
            "child_tasks": [],
            "task_group": null,
            "progress_reports": [
                {
                    "message": "Downloading Metadata Files",
                    "code": "sync.downloading.metadata",
                    "state": "completed",
                    "total": null,
                    "done": 11,
                    "suffix": null
                },
                {
                    "message": "Downloading Artifacts",
                    "code": "sync.downloading.artifacts",
                    "state": "running",
                    "total": null,
                    "done": 0,
                    "suffix": null
                },
                {
                    "message": "Associating Content",
                    "code": "associating.content",
                    "state": "running",
                    "total": null,
                    "done": 0,
                    "suffix": null
                },
                {
                    "message": "Parsed Modulemd",
                    "code": "sync.parsing.modulemds",
                    "state": "completed",
                    "total": 374,
                    "done": 374,
                    "suffix": null
                },
                {
                    "message": "Parsed Modulemd-defaults",
                    "code": "sync.parsing.modulemd_defaults",
                    "state": "completed",
                    "total": 45,
                    "done": 45,
                    "suffix": null
                },
                {
                    "message": "Parsed Packages",
                    "code": "sync.parsing.packages",
                    "state": "completed",
                    "total": 19122,
                    "done": 19122,
                    "suffix": null
                },
                {
                    "message": "Parsed Advisories",
                    "code": "sync.parsing.advisories",
                    "state": "completed",
                    "total": 1566,
                    "done": 1566,
                    "suffix": null
                },
                {
                    "message": "Parsed Comps",
                    "code": "sync.parsing.comps",
                    "state": "completed",
                    "total": 67,
                    "done": 67,
                    "suffix": null
                }
            ],
            "created_resources": [
                null
            ],
            "reserved_resources_record": [
                "/pulp/api/v3/remotes/rpm/rpm/9b11994b-f7ea-4df3-a7ed-094f4b183a6c/",
                "/pulp/api/v3/repositories/rpm/rpm/c610ead3-8517-47c4-9ed8-d9dc9cc731ee/"
            ]
        },