
The horizon.tabs javascript was updating the last row of any <table> in the tab when the focus was changed to a different tab, stomping over the last row of the table. This commit limits updates to tables with the .datatable class, and adds a class to the updated <span> in affected templates so it can be selected a little more unambiguously. Fixes bug #1080513. Change-Id: I1b778bdc77887dcf540c96c2ab8be239bc13258c