4935: Comments out of order

almt

What version are you running?

3.0.17

What's the URL of the page containing the problem?

Something like https://codereviews/r/136831/#gcomment7625

What steps will reproduce the problem?

We don't know how to replicate this. Every so often, a comment thread will get displayed out of order. An example of a thread

  • 6 days, 3 hours ago
  • 6 days, 2 hours ago
  • 6 days ago
  • 4 days, 23 hours ago
  • 4 days, 21 hours ago
  • 6 days, 7 hours ago
  • 6 days, 3 hours ago

What is the expected output? What do you see instead?

It should be in chronological order.

What operating system are you using? What browser?

MacOS 11.4, latest Chrome

Please provide any additional information below.