[Seaside] Feature or bug related to Canvas API's implementation of textInput (async edition)?

[Rick Flower]

I just happened to notice this when I had a breakpoint set inside a 
liveCallback block such as below :

(html textInput) size: 5; value: ''; liveCallback: [ :value :r | 
dosomething_here ]

I find that a breakpoint fires every time a character is typed into the 
field.. I'm guessing (but haven't
checked) that the javascript as part of SeasideAsync is hooked into the 
javascript "onchange" event
instead of a focus change..   Anyway, just thought I'd check to see if 
this would still work if plugged
into the focus change event instead without pestering Seaside for each 
character.  Anyway, just
thought I'd check..