Intrinsic extensions for static methods in interfaces fail to compile

[gusty]

Intrinsic extensions for static methods in interfaces fail to compile

Repro steps

[<Interface>]
type MyInterface<'T> =
    interface end
type MyInterface with
    static member ByPass (x: MyInterface<'t>) = x

Expected behavior

Compile

Actual behavior

Error: stdin(6,6): error FS0956: Members that extend interface, delegate or enum types must be placed in a module separate to the definition of the type. This module must either have the AutoOpen attribute or be opened explicitly by client code to bring the extension members into scope.

Known workarounds

Removing lines 2 and 3, but obviously in real life code this means duplicating all the module let bindings code that might sit between those 2 lines and are needed to implement ByPass and other static members defined in the interface.

Related information

Provide any related information (optional):

Microsoft (R) F# Interactive version 12.8.0.0 for F# 8.0