Divergent case: rustfmt increases indentation on each invocation in rustfmt::skip'd block

In the following example, rustfmt increases the indentation of the line with }); by one level each time it is run:

macro_rules! pwm_timer_init {
    ($tim:expr) => {{
        let tim = $tim;
        #[rustfmt::skip]
        tim.ccmr1_output().write(|w| {
            w
                .oc1pe().enabled()
                .oc1m().pwm_mode1()
                .oc2pe().enabled()
                .oc2m().pwm_mode1()
        });
    }};
}

This is also visible in the nightly version of the playground, though I found it with rustfmt 1.5.1-stable (4b91a6e 2022-08-08).

Start with the macro_rules example in the issue and reproduce it using the linked Rust Playground or rustfmt 1.5.1-stable. Run rustfmt repeatedly on the rustfmt::skip'd block and trace the formatting behavior responsible for the closing }); line. Done means repeated invocations no longer increase its indentation.