**Build scan:**
https://gradle-enterprise.elastic.co/s/xvwrlxusnxdgu/tests/:qa:rolling-upgrade:v8.6.1%23oneThirdUpgradedTest/org.elasticsearch.upgrades.SnapshotBasedRecoveryIT/testSnapshotBasedRecovery

**Reproduction line:**
```
./gradlew ':qa:rolling-upgrade:v8.6.1#oneThirdUpgradedTest' -Dtests.class="org.elasticsearch.upgrades.SnapshotBasedRecoveryIT" -Dtests.method="testSnapshotBasedRecovery" -Dtests.seed=32151106DB58AD22 -Dtests.bwc=true -Dtests.locale=en-MT -Dtests.timezone=Asia/Colombo -Druntime.java=17
```

**Applicable branches:**
main

**Reproduces locally?:**
Didn't try

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.upgrades.SnapshotBasedRecoveryIT&tests.test=testSnapshotBasedRecovery

**Failure excerpt:**
```
java.lang.AssertionError: timed out waiting for green state for index [snapshot_based_recovery] cluster state [{
  "cluster_name" : "v8.6.1",
  "cluster_uuid" : "ETWjuovuQXC6pr6CN8pJXA",
  "version" : 391,
  "state_uuid" : "y7ss0aZLQvab9JIDk7jppg",
  "master_node" : "tsyOGVI1T5iBSTLS0zL29A",
  ...
```
server/src/main/java/org/elasticsearch/cluster/routing/allocation/allocator/DesiredBalanceComputer.java
private static ShardRouting discardAllocationStatus(ShardRouting shardRouting) {
        return shardRouting.updateUnassigned(discardAllocationStatus(shardRouting.unassignedInfo()), shardRouting.recoverySource());
    }
    private static UnassignedInfo discardAllocationStatus(UnassignedInfo info) {
        if (info.getLastAllocationStatus() == UnassignedInfo.AllocationStatus.NO_ATTEMPT) {
            return info;
        }
        return new UnassignedInfo(
            info.getReason(),
            info.getMessage(),
            info.getFailure(),
            info.getNumFailedAllocations(),
            info.getUnassignedTimeInNanos(),
            info.getUnassignedTimeInMillis(),
            info.isDelayed(),
            UnassignedInfo.AllocationStatus.NO_ATTEMPT,
            info.getFailedNodeIds(),
            info.getLastAllocatedNodeId()
        );
    }
    private static int computeIterationCountReportInterval(RoutingAllocation allocation) {
        final int relativeSize = allocation.metadata().getTotalNumberOfShards();
        int iterations = 1000;
        while (iterations < relativeSize && iterations < 1_000_000_000) {
            iterations *= 10;
        }
        return iterations;
    }
}