alievmirza commented on code in PR #4552:
URL: https://github.com/apache/ignite-3/pull/4552#discussion_r1801088939


##########
modules/table/src/main/java/org/apache/ignite/internal/table/distributed/raft/PartitionListener.java:
##########
@@ -604,6 +604,12 @@ public boolean onBeforeApply(Command command) {
         return false;
     }
 
+    @Override
+    public void onLeaderStop() {
+        maxObservableSafeTime = -1;

Review Comment:
   I was thinking about the scenario when we've started to handle 
onBeforeApply, 
   and in the place where we write `maxObservableSafeTime = proposedSafeTime`
   ```
               if (proposedSafeTime >= maxObservableSafeTime) {
                   maxObservableSafeTime = proposedSafeTime;
               }
   ```
   right before that `onLeaderStop` logic is performed, so we will have
    ```
   maxObservableSafeTime == some value > 0
   maxObservableSafeTime == -1
   maxObservableSafeTime == proposedSafeTime
   ```
   and finished `onLeaderStop` logic, so  `maxObservableSafeTime` won't be -1 
as we were expected 



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