[tbb-bugs] #15406 [Tor Browser]: Patch make_incremental_update.sh to only include forced updates if they differ?

[Tor Bug Tracker & Wiki]

#15406: Patch make_incremental_update.sh to only include forced updates if they
differ?
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     Reporter:           |      Owner:  tbb-team
  mikeperry              |     Status:  new
         Type:  defect   |  Milestone:
     Priority:  normal   |    Version:
    Component:  Tor      |   Keywords:  tbb-4.5-alpha, TorBrowserTeam201503
  Browser                |  Parent ID:
   Resolution:           |
Actual Points:           |
       Points:           |
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Comment (by mcs):

 I do not think it is a good idea to make this change without testing and
 considering what might break. The main reason that Kathy and I set things
 up to always force a full replace of the bundled add-ons was to reduce
 load on the Tor network by making it more likely that an incremental
 update would succeed. If we do not "force replace" the add-ons then, if an
 add-on is updated by the user, the next incremental update will fail. I
 fear that might be fairly common, which means the update service will be
 more likely to fallback to a full update.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15406#comment:2>
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