ItemReorder seems broken in beta.10. Is it fixed now?

It looks like ItemReorderGesture was being actively worked on around the time of the beta.10 release, and a broken version was released. In particular, line 32:

         this.lastYcoord = this.lastToIndex = -100;

There may have been other confounding issues beside this line, but with a list of three items (index 0,1,2), the symptoms are:

  1. Drag item from index 2 to index 0 (top of list) => { from: 2, to: 1 } (“to” property should be 0, not 1).
  2. Drag item from index 1 to index 0 => { from: 1, to: -100 } (“to” should again be 0, not -100).

The obvious -100 bug was apparently fixed on June 29. So can we assume this will be working in beta.11? Thanks.