How to handle a deselect on Redwood VBCS?

Summary:

Hi,

I am developing an app using Oracle Redwood theme for multiple selection on table. I have setup an action chain on the first-selected-row (to display or not a fragment). However, when selecting all values and then deselecting one of the values , first-selected-row event considers that the deselection event as one of it's own and populates row.data . How to handle such case?

The point here is that because of that, when unselecting (though all others are selected) , the fragment that I have mentioned is shown, though it should not be. ( should be displayed only if there is a single selection made on the list).