Force a parameter in a portlet include

I have a portlet include with a control parameter “parItem” that is bound to: #{activePageBean.mytask.taskData.myItem} to show Item details to do the task.
My problem is that the “portlet include” has in turn links to other portlets with a parameter with the same name.
When I go back to return to the task and refresh the portlet include, it show me another “item”.

So, when I refresh the portlet include, how can I force the binding again to #{activePageBean.mytask.taskData.myItem} (either javascript client-side or java) ?