erp5_upgrader: do not run activeSense for post-upgrade step

As results may be inconsistent as long as pre-upgrade and upgrade steps have been run for real

bt5/erp5_upgrader/SkinTemplateItem/portal_skins/erp5_upgrader/Alarm_runFullUpgrader.py

@@ -12,6 +12,9 @@ pre_upgrade_tag = '%s-preupgrade' % tag
 upgrade_tag = '%s-upgrade' % tag
 post_upgrade_tag = '%s-postupgrade' % tag
 
+active_process = context.newActiveProcess()
+
+
 portal_alarms.upgrader_check_pre_upgrade.activate(
   activity='SQLQueue',
   tag=pre_upgrade_tag,
@@ -23,15 +26,15 @@ portal_alarms.upgrader_check_upgrader.activate(
   after_tag=pre_upgrade_tag,
  ).activeSense(fixit=fixit, params={'tag': upgrade_tag})
 
-portal_alarms.upgrader_check_post_upgrade.activate(
+if fixit:
+  portal_alarms.upgrader_check_post_upgrade.activate(
     activity='SQLQueue',
     tag=post_upgrade_tag,
     after_tag=upgrade_tag,
-).activeSense(fixit=fixit, params={'tag': post_upgrade_tag})
+  ).activeSense(fixit=fixit, params={'tag': post_upgrade_tag})
 
 
 # start another activity to collect the results from each upgrader step
-active_process = context.newActiveProcess()
 context.activate(after_tag=post_upgrade_tag).Alarm_postFullUpgradeNeed(
   active_process=active_process.getRelativeUrl())