A PinAll with no job selected beforehand results in ambiguous job details content. Steps to reproduce: o (re)load treeherder o click the PinAll icon in the first (or any) resultset Expected: The first job (or first unclassified failure if one exists in the pin process?) should get selected in both the main page and in the pinboard, during the pin. Observed: A random(?) job gives the appearance of being the selected job in the pinboard, it is not selected in the main page, the job details panel loads with ambiguous data.