Dear Umbraco

I lost about a whole day on this, so hopefully it can help others (or me again after I'll forget)

For some reason Umbraco 4.5 have a problem with a LinkButton and it causes all the button events not to fire

(I wonder if more asp: server controls are affected)

TestControl.ascx :

<%@ Control
    Language="VB"
    Inherits="TestControl"
    CodeFile="TestControl.ascx.vb"
%>

<fieldset>
    <br />
    <legend>TestControl</legend>

    <asp:TextBox runat="server" ID="_textBoxTest" />
    <asp:Button runat="server" ID="_buttonTest" OnClick="_buttonTest_Click" Text="Test" />
   
    <%-- This LinkButton will break all the event handlers in this and other user controls on the page --%>
    <asp:LinkButton runat="server" ID="_linkButtonTest" Text="Test" PostBackUrl="http://www.google.com" />
    <br />
</fieldset>

TestControl.ascx.vb :

Partial Class TestControl
    Inherits System.Web.UI.UserControl

    Protected Overloads Overrides Sub OnInit(ByVal e As EventArgs)

        MyBase.OnInit(e)

        _textBoxTest.Text = "Initial OnInit Value"

    End Sub

    Protected Sub _buttonTest_Click(ByVal sender As Object, ByVal e As System.EventArgs)

        _textBoxTest.Text = DateTime.Now.ToString()

    End Sub

End Class