rich:calendar enableManualInput Problem

[frisch]

I have a modal panel with a calendar input that also supports manual input

                         <rich:calendar value="#{.....}"
                                id="cal" disabled="#{!m.original}" inputSize="10"
                                datePattern="dd.MM.yyyy" enableManualInput="true" >
                                <a4j:support event="onchanged"
                                    action="#{user...}"
                                    status="waitStatus"
                                    reRender="...."
                                    oncomplete="Richfaces.showModalPanel('terminGrund');">
                                    <f:param name="...." value="#{index}" />
                                </a4j:support>
                                <a4j:support event="oninputchange"
                                    action="...."
                                    status="waitStatus"
                                    reRender="..."
                                    oncomplete="Richfaces.showModalPanel('terminGrund');">
                                    <f:param name="...." value="#{index}" />
                                </a4j:support>
                            </rich:calendar>

My problem is when I change the input manually and click save the modalPanel is called first and my save action is never called.

Does anyone now a workaround for this? Is there something like a queue I can use?

thanks a lot