`static mut` transform produces warning with unsafe-op-in-unsafe-fn

[ia0]

#![warn(unsafe_op_in_unsafe_fn)]
#[entry]
fn main() -> ! {
    // The next line generates a warning while it shouldn't.
    static mut CLOCKS: MaybeUninit<Clocks> = MaybeUninit::new();
    // ...
}

I see in #411 (comment) that maybe this static mut transform is going to be deprecated. Is that true?