Adding a minor convenience feature to prevent the selection (and toggling) of buttons in the buttonbar/tabbar spark components. Essentially creating momentary buttons, but with the convenience of the buttonbar/tabbar.
Simple example showing the functionality [1]. Has right click with view source. Diffs for the one file that was changed [2]. [1] http://people.apache.org/~mkessler/examples/FLEX-33590/app.swf [2] https://github.com/KesslerConsulting/example/commit/d8ed4530abdab192ed28732baa481b61dbe70a08 -Mark
