We saw a case where the recovery stats reported `recovered_bytes` greater than `length_in_bytes` for one file:

```
GET /_recovery?detailed

200 OK
...
{
  "name": "_buk.fdt",
  "length_in_bytes": 26891307173,
  "reused": false,
  "recovered_in_bytes": 35324928266,
  "recovered_from_snapshot_in_bytes": 8433621093
}
...
```

NB `35324928266 == 26891307173 + 8433621093`

This causes Elasticsearch to compute a negative value for the reserved space on the target node of this recovery, which prevents stats APIs from working. This appears to be caused by a network-level failure which triggers a retry without first cancelling an ongoing download of a different file with the same name from the snapshot repository.

---

### Workaround

Restart the target node to clear these stats.
server/src/main/java/org/elasticsearch/index/shard/IndexShard.java
indexSettings.getMergePolicy(),
            buildIndexAnalyzer(mapperService),
            similarityService.similarity(mapperService == null ? null : mapperService::fieldType),
            codecService,
            shardEventListener,
            indexCache != null ? indexCache.query() : null,
            cachingPolicy,
            translogConfig,
            IndexingMemoryController.SHARD_INACTIVE_TIME_SETTING.get(indexSettings.getSettings()),
            List.of(refreshListeners, refreshPendingLocationListener),
            Collections.singletonList(new RefreshMetricUpdater(refreshMetric)),
            indexSort,
            circuitBreakerService,
            globalCheckpointSupplier,
            replicationTracker::getRetentionLeases,
            this::getOperationPrimaryTerm,
            snapshotCommitSupplier,
            isTimeseriesIndex ? TIMESERIES_LEAF_READERS_SORTER : null
        );
    }
    /**
     * Acquire a primary operation permit whenever the shard is ready for indexing. If a permit is directly available, the provided
     * ActionListener will be called on the calling thread. During relocation hand-off, permit acquisition can be delayed. The provided
     * ActionListener will then be called using the provided executor.
     *
     * @param debugInfo an extra information that can be useful when tracing an unreleased permit. When assertions are enabled
     *                  the tracing will capture the supplied object's {@link Object#toString()} value. Otherwise the object
     *                  isn't used
     */
    public void acquirePrimaryOperationPermit(ActionListener<Releasable> onPermitAcquired, String executorOnDelay, Object debugInfo) {