[26.0] Fix AttributeError when dataset in inheritance chain has no user#22062

jmchilton merged 1 commit intogalaxyproject:release_26.0galaxyproject/galaxy:release_26.0from

mvdbeek:fix_22044_dataset_inheritance_no_usermvdbeek/galaxy:fix_22044_dataset_inheritance_no_userCopy head branch name to clipboard