Problem - RadTextBox value does not update when it contains the focus on the server (CHROME, OPERA)

[Giancarlo]

describe below the steps to reproduce the error

1. Add an RadRibbonBar with handlerEvent in Control Click and add a button
2. Add an RadTextBox control with MultiLine property = 10, ID = "txtTetst"
3. in the Load event Add the following code
if (!IsPostBack)     txtTetst.Text = "Hello!."
4. Run
5. Enter a new value txtTest without leaving the focus of control, click the button of RadRibbonBar added

The value is not updated, this happens to me in Chrome and Opera I think Fatal Error

regards