[tor-bugs] #16014 [Tor Browser]: Windows: staged update fails if Meek is enabled

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#16014: Windows: staged update fails if Meek is enabled
-------------------------+--------------------------
 Reporter:  mcs          |          Owner:  tbb-team
     Type:  defect       |         Status:  new
 Priority:  normal       |      Milestone:
Component:  Tor Browser  |        Version:
 Keywords:               |  Actual Points:
Parent ID:               |         Points:
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 On Windows, if Meek is enabled, the updater fails while trying to copy
 files to the staged "update applied" directory.  Failure occurs because
 the file Browser/TorBrowser/Data/Browser/profile.meek-http-
 helper/parent.lock is in use.  The updater will fallback to an unstaged
 update and users will be prompted to restart to apply the update.  This
 works but a large updated/ directory is left behind which will not be
 deleted until another update is staged.

 We can fix this problem by skipping this parent.lock file inside the
 updater when copying files.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16014>
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