Trying to a pretty-print object that calls logger via `show` crashes Julia

[tkf]

MWE

struct MyIterator end
function Base.iterate(itr::MyIterator)
    # @info "itearte(itr::MyIterator)" itr
    return (:first, nothing)
end
Base.iterate(::MyIterator, ::Nothing) = nothing

function Base.show(io::IO, ::MIME"text/plain", itr::MyIterator)
    print(io, "MyIterator: ")
    join(io, itr, ", ")
end

Commenting out the line with @info and invoking show on MyIterator causes a segfault.

Since it's so easy to put @info and @debug for method that might be called from show, I think it'd be nice to detect infinite recursion. It might be a nice use-case of the context variables JuliaLang/julia#35833 (comment)