Fix serialization of nested aggregates under SingleBucketAggregateBase
#3496
| Job | Run time |
|---|---|
| 2m 3s | |
| 4m 20s | |
| 3m 42s | |
| 1m 58s | |
| 2m 13s | |
| 4m 29s | |
| 2m 53s | |
| 2m 1s | |
| 1m 52s | |
| 4m 26s | |
| 3m 36s | |
| 2m 57s | |
| 36m 30s |