`typeof` as a generic parameter breaks syntax highlighting in an arrow function as an object literal value

[infctr]

TS and JS Grammar Extension version: 0.0.46 / latest

Code

const x = {
  success: (state, { payload }): IState =>
    R.compose<typeof payload, IState, IState>(
      R.merge<IState>(state),
      R.reduce(
        (acc, channel) =>
          setChannel(channel.id)(
            {
              data: omitStoreEntities(channel),
              status: Status.LOADED,
              error: null,
            },
            acc
          ),
        R.clone(initialState)
      )
    )(payload),
};

Changing arrow function to a function / method shorthand has broken syntax highlighting only on generic parameters. Happens only in built-in Monokai theme

Not sure whether the issue should be opened in vscode repo addressing this very theme.