No-arg `ScopedValues.@with` doesn't like being in a scope

[IanButterworth]

julia> x = Base.ScopedValues.ScopedValue(1)
Base.ScopedValues.ScopedValue{Int64}(1)

julia> Base.ScopedValues.@with x => 2 begin
           Base.ScopedValues.@with begin
               @show x
           end
       end
ERROR: MethodError: Cannot `convert` an object of type Base.ScopedValues.Scope to an object of type Base.PersistentDict{Base.ScopedValues.ScopedValue, Any}
The function `convert` exists, but no method is defined for this combination of argument types.

Closest candidates are:
  convert(::Type{T}, ::T) where T<:AbstractDict
   @ Base abstractdict.jl:571
  convert(::Type{T}, ::T) where T
   @ Base Base.jl:129
  convert(::Type{T}, ::AbstractDict) where T<:AbstractDict
   @ Base abstractdict.jl:573

Stacktrace:
 [1] Base.ScopedValues.Scope(values::Base.ScopedValues.Scope)
   @ Base.ScopedValues ./scopedvalues.jl:85
 [2] top-level scope
   @ REPL[3]:2

julia> versioninfo()
Julia Version 1.12.0-DEV.1315
Commit bb5aa5bd16* (2024-10-06 02:17 UTC)