Something strange is going on with this:

Mar 16 19:39:11 bodhi-backend01.iad2.fedoraproject.org celery-3[2480095]: [2024-03-16 19:39:11,460: IN
FO/ForkPoolWorker-16] Updating bug titles for security updates
Mar 16 19:39:11 bodhi-backend01.iad2.fedoraproject.org celery-3[2480095]: [2024-03-16 19:39:11,514: WA
RNING/ForkPoolWorker-16] Not removing builds of flatpak-runtime-f38-3820231204155221.1 flatpak-sdk-f38
-3820231204155221.1 from empty tag                                                                    
Mar 16 19:39:11 bodhi-backend01.iad2.fedoraproject.org celery-3[2480095]: [2024-03-16 19:39:11,765: ER
ROR/ForkPoolWorker-16] /usr/bin/skopeo copy -a docker://candidate-registry.fedoraproject.org/f38/flatp
ak-runtime@sha256:c2c862ed9071fa390e77199151fc9b2afc1e58df1eca53d7191235777dfb180f docker://registry.f
edoraproject.org/f38/flatpak-runtime:f38-3820231204155221.1 returned a non-0 exit code: 1
Mar 16 19:39:11 bodhi-backend01.iad2.fedoraproject.org celery-3[2480095]: [2024-03-16 19:39:11,765: ER
ROR/ForkPoolWorker-16] b'Getting image list signatures\nCopying 2 images generated from 2 images in li
st\nCopying image sha256:a13ae0213f0766f75c638b0fc402b8c0881c567cc819f542eb937ba0ad222f0a (1/2)\n'    
Mar 16 19:39:11 bodhi-backend01.iad2.fedoraproject.org celery-3[2480095]: b'time="2024-03-16T19:39:11Z
" level=fatal msg="copying image 1/2 from manifest list: determining manifest MIME type for docker://c
andidate-registry.fedoraproject.org/f38/flatpak-runtime@sha256:c2c862ed9071fa390e77199151fc9b2afc1e58d
f1eca53d7191235777dfb180f: reading manifest sha256:a13ae0213f0766f75c638b0fc402b8c0881c567cc819f542eb9
37ba0ad222f0a in candidate-registry.fedoraproject.org/f38/flatpak-runtime: manifest unknown"\n'       
Mar 16 19:39:11 bodhi-backend01.iad2.fedoraproject.org celery-3[2480095]: [2024-03-16 19:39:11,765: ER
ROR/ForkPoolWorker-16] Exception in ComposerThread(f38-flatpak-updates-testing)

I have to get some f40 stable updates pushed, so I'm gonna revoke this and we can sort it out and push again...