Accessing the field docstring of a parametric `struct` gives `MethodError` in the REPL

[francis-biocurie]

Hi,

On julia 1.11.6 we can document the fields of a struct, as described in here in the Julia documentation.

If I define:

"MyStruct type docstring"
struct MyStruct
    "x docstring"
    x::Float64
end

I get in the REPL help-mode (as expected):

help?> MyStruct
search: MyStruct struct abstract

  MyStruct type docstring

help?> MyStruct.x
  x docstring

But, If I define a parametric struct:

"MyParamStruct type docstring"
struct MyParamStruct{T<:Real}
    "x docstring"
    x::T
end

I get:

help?> MyParamStruct
search: MyParamStruct MyStruct

  MyParamStruct type docstring

help?> MyParamStruct.x
ERROR: MethodError: no method matching Base.Docs.Binding(::Type{MyParamStruct}, ::Symbol)
The type `Base.Docs.Binding` exists, but no method is defined for this combination of argument types when trying to construct it.

Closest candidates are:
  Base.Docs.Binding(::Module, ::Symbol)
   @ Base docs/bindings.jl:9

Stacktrace:
 [1] (::REPL.Logged{DataType})(::Type, ::Vararg{Any})
   @ REPL ~/.julia/juliaup/julia-1.11.6+0.x64.linux.gnu/share/julia/stdlib/v1.11/REPL/src/docview.jl:174
 [2] top-level scope
   @ ~/.julia/juliaup/julia-1.11.6+0.x64.linux.gnu/share/julia/stdlib/v1.11/REPL/src/docview.jl:632

The help-mode of the REPL should also work for the fields of a parametric struct.

Thanks!