The kojihash value was factoring in the file inode value, which the actual comparison code would always ignore. This caused a disparity between the normal comparison result and a hash comparison when rpms differed only by inode. The inode values listed in the rpm header are not real inodes and their values don't really matter (apart from internal distinction).
Fix in https://pagure.io/koji/pull-request/4546
Metadata Update from @mikem: - Custom field Size adjusted to None - Issue set to the milestone: 1.36.1
Metadata Update from @tkopecek: - Issue tagged with: testing-basic
Metadata Update from @tkopecek: - Issue tagged with: testing-ready
This issue has been migrated to Fedora Forge: https://forge.fedoraproject.org/koji/koji/issues/4547
Please continue any further discussion there.