Commandlink in paneltab fail's to navigate for the first time

Question

Problem Description:
We have a panelTab which will be rendered based on the parameter passed from the called page. The corresponding showdetailitem will be disclosed based on the parameter value. We have a commandlink that is added to the showdetailitem which is not navigating to the corresponding page for the first time. When we click any other tab and comes back to the current showdetailitem then the commandlink works well
version:
Jdev 11.1.1.4
Sample code:
<af:panelTabbed id="pt2" binding="#{Bean.tab}">
                <af:showDetailItem text="tab 1" id="sdi1" dontPersist="ALL" disclosed="#{param.dt ne 'true'}">
                                   <af:region value="#{bindings.taskflow1.regionModel}" id="r1"/>
                                   </af:showDetailItem>
                <af:showDetailItem text="Tab 2" id="sdi2" dontPersist="ALL">
                <af:region value="#{bindings.taskflow1.regionModel}" id="r2"/>
                </af:showDetailItem>
                <af:showDetailItem text="tab 3" id="sdi3"  dontPersist="ALL" disclosed="#{param.dt eq 'true'}">
                  <af:region value="#{bindings.taskflow1.regionModel}" id="r3" />
                </af:showDetailItem>
              </af:panelTabbed>
artifacts:
index.jspx - above code is in this file
taskflow.xml - this will contain navigation from page1 to page2
Page 1 - having a commandlink and an outputText saying page 1
Page 2 - having an outputText saying page 2
Briefing:
when the page loads, the parameter that is passed to the tab is set to true so that the 3rd tab is disclosed. This is working as expected.
But when we click the commandlink the navigation is not happening..
If user clicks on any other tab and goes back to 3rd tab, it displays page2. and from now onwards it works fine.
Any solution/workaround for this..

Answer 1

issue resolved..
Solution:
setting the param value to the pageflowScope and using it resolved the isssue.
The reason is, the parameter that you are trying to pass in the URL exists only when you click the "goLink1" link (present in the template)..Once the page shows up, the parmeter will not be there and so when you click the link in the third tab, the framework will try to re-evaluate the tabs disclosure property and will find that the condition is not true and so will not do anything inside the tab...Got the above info from one friend..