Panic in sqrt function

[tomlinton]

use rust_decimal_macros::dec;

fn main() {
    let a = dec!(400.00000000000000000000000003);
    a.sqrt();
}

Will panic here

rust-decimal/src/maths.rs

Line 359 in 63f5ca2

assert!(circuit_breaker < 1000, "geo mean circuit breaker");

result: 20.000000000000000000000000001 last: 20.00000000000000000000
result: 20.00000000000000000000 last: 20.000000000000000000000000001
result: 20.000000000000000000000000001 last: 20.00000000000000000000
result: 20.00000000000000000000 last: 20.000000000000000000000000001