[Bug 2039052] Re: blocking refresh does not block auto-refresh

[Maciej Borzecki]

Is the firefox snap preinstalled in the images you use during the CI
runs? I suspect you're basically racing with snapd which finds there's
an update for firefox and starts it. Then subsequent commands have no
effect on a refresh which is already in progress.

Would it be possible to grab the output of `snap changes` and add it to
the bug report?

For the time being, I would suggest to use this order:
1. set snap refresh --hold=forever
2. run `snap changes` and sleep whenever you observe `(Doing/Undoing/Do\s)`, eg:

  while true; do 
    if snap changes 2>&1 | grep -E '(Doing|Undoing|Do\s|restarting)'; then 
      echo wait; sleep 0.5 
    else 
      break
    fi
  done

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Title:
  blocking refresh does not block auto-refresh

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