[1.2.3] DualListField layout bug in Safari

[baskor]

Using Safari 3 or 4. I've found two issues with DualListField and Safari

Bug 1:
- Open DualListField example (http://extjs.com/examples/forms/duallistfield.html)
- Select "Apple"

Now the box automatically scrolls to the bottom, and I can't see my selection.

Bug 2:
- Open DualListField example (http://extjs.com/examples/forms/duallistfield.html)
- Scroll to bottom and select "Yahoo"

Now the layout is completely messed up. See attached image.