Steps to reproduce:

1. Create problem event
2. Update problem and set suppress "Indefinitely"
3. Send an API requests at the same time (less than 1 second) to suppress and then unsuppress event

   "method": "event.acknowledge",
   "params": { "eventids": "5", "action": "32", "suppress_until": 0 }
   
   "method": "event.acknowledge",
   "params":{ "eventids": "5", "action": "64" } 

   script with curl script attached api-curl.sh

1. Check result in DB and UI on problems page

Result:
incorrect acknowledge order, as result event with suppressed icon being displayed in problems list without the "Show suppressed problems" filter applied

DB:

Expected:
Correct order. I assume that sorting should be by clock, but if clocks are the same then by eventid