When renaming or closing a window/tab the selection does not stay in the correct place

[guysherman]

Scenario

1. Select a window
2. Hit x to close it.

Expected behavior

The item that is now has the position that the closed window did, should be selected (this would typically be the next item in the list).

Actual behavior:

The selection moves up to the item above the window that was closed

Cause

This is a bug in treecat, where only changed properties are updated, but if you change items you need to change selected as well.

[guysherman]

There is a similar behavior on renaming a window, where the selection goes to the top of the list, and the keys are out of sync, it is the same problem where selectedIndex is not being reset after replacing items, because it has not changed.