Rerendering List Replaces First ListItem

[cwarden]

When a List is rerendered, the first listitem is replaced. If it has focus, it loses focus. The other listitems don't have this problem.

Here's an example using the todomvc application.

[cwarden]

I don't understand the code yet, but the problem appears to be in reconcileChildren, in which stableKey doesn't get set.

36a9ad6 "fixes" the issue.