When += statement exists in while loop, "Extract Method" does not change anything, or sometime it changes non-related code.

class RefactoringTest {
    class A(var x: Int, var y: Int)
    class B(var a: A)
    
    def foo(a : A, b: B) {
      //(
      val l = Array(1, 2, 3)
      l(0) = 10
      //) Extract Method here

      while (b.a.x < 10) {
        b.a.x += 10;
      }
      l.toString()
    }
}