Strange error message when processing a file with a directive %YAML 2.0

[Paalon]

According to https://yaml.org/spec/1.2.2/, 6.8.1.,

Documents with a “YAML” directive specifying a higher major version (e.g. “%YAML 2.0”) should be rejected with an appropriate error message.

But the following gives strange error message.

julia> YAML.load("""%YAML 2.0\n---\nhello: world""")
ERROR: type DirectiveToken has no field start_mark
Stacktrace:
  [1] getproperty(x::YAML.DirectiveToken, f::Symbol)
    @ Base ./Base.jl:37
  [2] process_directives(stream::YAML.EventStream)
    @ YAML ~/.julia/packages/YAML/6ydWl/src/parser.jl:96
  [3] parse_document_start(stream::YAML.EventStream)
    @ YAML ~/.julia/packages/YAML/6ydWl/src/parser.jl:176
  [4] parse_implicit_document_start(stream::YAML.EventStream)
    @ YAML ~/.julia/packages/YAML/6ydWl/src/parser.jl:155
  [5] forward!(stream::YAML.EventStream)
    @ YAML ~/.julia/packages/YAML/6ydWl/src/parser.jl:73
  [6] compose_document(composer::YAML.Composer)
    @ YAML ~/.julia/packages/YAML/6ydWl/src/composer.jl:49
  [7] compose(events::YAML.EventStream)
    @ YAML ~/.julia/packages/YAML/6ydWl/src/composer.jl:38
  [8] load(ts::YAML.TokenStream, constructor::YAML.Constructor)
    @ YAML ~/.julia/packages/YAML/6ydWl/src/YAML.jl:38
  [9] load(ts::YAML.TokenStream, more_constructors::Nothing, multi_constructors::Dict{…}; dicttype::Type{…}, constructorType::typeof(YAML.SafeConstructor))
    @ YAML ~/.julia/packages/YAML/6ydWl/src/YAML.jl:44
 [10] load
    @ ~/.julia/packages/YAML/6ydWl/src/YAML.jl:44 [inlined]
 [11] load (repeats 3 times)
    @ ~/.julia/packages/YAML/6ydWl/src/YAML.jl:47 [inlined]
 [12] load(::String)
    @ YAML ~/.julia/packages/YAML/6ydWl/src/YAML.jl:88
 [13] top-level scope
    @ REPL[3]:1
Some type information was truncated. Use `show(err)` to see complete types.

[Paalon]

I think this is now solved.