test for this bug is here: https://code.launchpad.net/~tpeeters/ubuntu-ui-toolkit/toolbar-tabs-deactivate/+merge/186065/comments/446704
test for this bug is here: https:/ /code.launchpad .net/~tpeeters/ ubuntu- ui-toolkit/ toolbar- tabs-deactivate /+merge/ 186065/ comments/ 446704