Odd indentation with QML reformatting for multiline comments

Reformatting a QML file with multiline comments (/* */) produces wrongly indented text.
Take this example and reformat it in Qt Creator (the wrong indentation cant be shown here in Jira):

Item {
    /*
    Item {

    }
    Item {

    }
    Item {

    }
    Item {

    }
    */
}

Also notice that the number of chars this formatting bug produces is O(n^2). Which means if you have a comment with 1000 lines and an indentation with 4 spaces, about 2MB of text will be produced! This makes the QtCreator unusably slow.