incorrect destructuring of assignment expression for console.log([x, y] = [1, 2])

expected:

$ echo 'var x, y; console.log([x, y] = [1, 2])' | node
[ 1, 2 ]

Bublé version 0.14.2 transpile:

$ echo 'var x, y; console.log([x, y] = [1, 2])' | bin/buble
var x, y; var assign;
console.log((assign = [1, 2], x = assign[0], y = assign[1]))

actual (incorrect) result:

$ echo 'var x, y; console.log([x, y] = [1, 2])' | bin/buble | node
2

This buble test result is incorrect:

        {
                description: 'lifts its variable declarations out of the expression',
                input: `
                        foo();
                        if ( bar([x, y] = [1, 2]) ) {
                                baz();
                        }`,
                output: `
                        foo();
                        var assign;
                        if ( bar((assign = [1, 2], x = assign[0], y = assign[1])) ) {
                                baz();
                        }`
        },

Specifically this line:

if ( bar((assign = [1, 2], x = assign[0], y = assign[1])) ) {

https://gitlab.com/Rich-Harris/buble/blob/7b3019900909910555bbc5443928dd2094705987/test/samples/destructuring.js#L451

It should be:

if ( bar((assign = [1, 2], x = assign[0], y = assign[1], assign)) ) {
                                                       ^^^^^^^^