bitbake: uihelper: Set update flag when start event encountered

Its a minor correctness detail but the update flag should be set
when Start events are encountered.

(Bitbake rev: 96683ed68e11672ff22fb4a291d2628676c136f0)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/uihelper.py

@@ -51,6 +51,7 @@ class BBUIHelper:
         if isinstance(event, bb.runqueue.runQueueTaskStarted) or isinstance(event, bb.runqueue.sceneQueueTaskStarted):
             self.tasknumber_current = event.stats.completed + event.stats.active + event.stats.failed + 1
             self.tasknumber_total = event.stats.total
+            self.needUpdate = True
 
     def getTasks(self):
         self.needUpdate = False