show() to an IOBuffer with marker_space = :data results in an empty PDF

[bjarthur]

following this discussion on how to save a figure to an IOBuffer, i have found that setting markerspace to :data results in the marks being absent from the resulting PDF. with markerspace unspecified, everything works.

MWE:

using WGLMakie, CairoMakie, Base64, Bonito 

app = App() do
    f = Figure()   
    a, s = scatter(f[1,1], Point3f.(rand(10), rand(10), rand(10)),
                   markersize = 0.03, markerspace = :data     # delete this line and it will work
                   )

    CairoMakie.activate!() 
    io = IOBuffer()
    show(io, MIME"application/pdf"(), f)
    
    io2 = IOBuffer()
    print(io2, "data:application/pdf;base64,")
    print(io2, base64encode(take!(io)))

    DOM.div(f,
            "Click to download ",
            DOM.a("scatter.pdf",
                  href=String(take!(io2)),
                  download="scatter.pdf"))
end 

screenshot of GUI:

screenshot of PDF:

the latest version(s) of Makie freshly installed into a temporary environment on an apple M2 max:

(jl_Us6BFN) pkg> st
Status `/private/var/folders/s5/8d629n5d7nsf37f60_91wzr40000gq/T/jl_Us6BFN/Project.toml`
  [824d6782] Bonito v4.0.0
  [13f3f980] CairoMakie v0.12.16
  [276b4fcb] WGLMakie v0.10.16
  [2a0f44e3] Base64 v1.11.0

[jkrumbiegel]

And a pdf via save doesn't have this problem? The title of the issue suggests that

[bjarthur]

correct, save works fine.