[Trinidad] Page reloads before launching the dialog

[Walter Mourão]

Hi folks,
I'm using Trinidad 1.0.9. I realized that when launching a dialog
(lightweight), the page containing the commandButton reloads before
launching the dialog.
Is it the expected behavior ? Is there a way to avoid that ?

The commandButton:
        <tr:commandButton text="#{messages['novo.documento']}"
action="#{captacaoController.entradaDeDadosDaCaptacaoNovoDocumentoAsDialog}"
            returnListener="#{captacaoController.returnFromNovoDocumento}"
            partialSubmit="true" immediate="true" useWindow="true"
windowHeight="600" windowWidth="600"/>

Thanks in advance.

Walter Mourão
http://waltermourao.com.br
http://arcadian.com.br
http://oriens.com.br