bb/ui/hob: reset event handler once build complete

The HobEventHandler passes events on to RunningBuild when a build is in
progress. This patch resets the HobEventHandler to handle events when the
build is complete.

(Bitbake rev: 3d66d4e64a6352c01662a24ee957eddcd3fde7fc)

Signed-off-by: Joshua Lock <josh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/hob.py

@@ -450,6 +450,8 @@ class MainWindow (gtk.Window):
         self.nb.set_current_page(0)
 
     def build_complete_cb(self, running_build):
+        # Have the handler process BB events again
+        self.handler.building = None
         self.stopping = False
         self.back.connect("clicked", self.back_button_clicked_cb)
         self.back.set_sensitive(True)