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  1. Core Server
  2. SERVER-4639

update yielding with upsert can duplicate a document

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.1.0
    • Component/s: Concurrency, Write Ops
    • Labels:
      None
    • Operating System:
      ALL

      Description

      if 2 threads are accessing the same document, and 1 thread moves the document "back" the 2nd thread can miss it

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