Sort constituents by job name

src/lib/Hydra/Controller/Build.pm

@@ -118,6 +118,9 @@ sub build_GET {
                 ]
             })
     );
+
+    # If this is an aggregate build, get its constituents.
+    $c->stash->{constituents} = [$c->stash->{build}->constituents_->search({}, {order_by => ["job"]})];
 }