qmlformat changes formatting in the second pass

Running qmlformat on the attached main.qml, and running it again on the formatted file creates a different output in the second pass:

$ diff qmlformat_1st_pass.qml qmlformat_2st_pass.qml
8d7
< id: root
12a12,13
> id: root
>
18c19
< return true;
—
> return true

The output from the second pass it stable and won't be reformated in any further passes.