ubi9-minimal:9.5 is missing a content_sets entry whereas it is present in ubi9-minimal: 9.4 . 

The same on e.g. ubi9/nginx-120 (9.5) while ubi9/nginx-120 (9.4) still contained the content_sets entry.

[root@rhel9 ~]# podman run -it registry.access.redhat.com/ubi9/nginx-120:9.5-1730563935 ls -lh /root/buildinfo/content_manifests/

total 1.1M
rw-rr-. 1 root root 1014K Nov  2 16:12 sbom-cyclonedx.json
rw-rr-. 1 root root  105K Nov  2 16:12 sbom-purl.json

~~~

[root@rhel9 ~]# podman run -it registry.access.redhat.com/ubi9-minimal:9.5 ls -lh /root/buildinfo/content_manifests/
total 592K
rw-rr-. 1 root root 469K Nov  1 19:30 sbom-cyclonedx.json
rw-rr-. 1 root root 118K Nov  1 19:30 sbom-purl.json
[root@rhel9 ~]# podman run -it registry.access.redhat.com/ubi9-minimal:9.4 ls -lh /root/buildinfo/content_manifests/
total 4.0K
rw-rw-r-. 1 root root 368 Sep 18 21:24 ubi9-minimal-container-9.4-1227.1726694542.json

~~~