Broken on Julia v1.10 nightly

[brenhinkeller]

https://github.com/JuliaIO/JLD.jl/actions/runs/3549454766/jobs/5961859455

Appears to be similar to JuliaIO/JLD2.jl#428, apparently caused by JuliaLang/julia#47170, should be fixable with something analogous to JuliaIO/JLD2.jl#438

[musm]

Fixed by #320