2.19.90
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 Fixes

  - Remove weak pointers on fields in task structure before freeing 
    task block (Ray Strode) [#139080]

 Translators

  - Ihar Hrachyshka (be@latin)
  - Takeshi Aihana (ja)
  - Inaki Larranaga Murgoitio (eu)
  - Ilkka Tuohela (fi)
  - Ankit Patel (gu)
  - I. Felix (ta)
  - Žygimantas Beručka (lt)