[Bug 2052436] [NEW] Thunderbird calendar notifications close themselves

[WaltZ]

Public bug reported:

I was sitting and staring at my computer when a Thunderbird calendar
notification decided to close itself and poof! it was gone.

** Affects: thunderbird (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2052436

Title:
  Thunderbird calendar notifications close themselves

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