[JS/TS] an explicit class that inherits another explicit class loses the base #5168

type Base =
    val Name: string
    new(name) = { Name = name }
type Derived =
    inherit Base
    val Extra: int
    new() = { inherit Base("derived"); Extra = 5 }

Derived().Name is undefined (.NET derived). The emitted class Derived does not extend Base, and the constructor calls Base's constructor function and discards the result. Members of Base called on a Derived then see none of its fields.

Fickl related

• Issue
• Planned fix