qe: Fix nested objects with $type key in JSON protocol
#918
| Job | Run time |
|---|---|
| 13m 13s | |
| 13m 3s | |
| 12m 35s | |
| 14m 9s | |
| 16m 7s | |
| 16m 10s | |
| 14m 33s | |
| 19m 14s | |
| 16m 11s | |
| 17m 8s | |
| 15m 11s | |
| 19m 40s | |
| 9m 21s | |
| 9m 18s | |
| 8m 59s | |
| 10m 12s | |
| 14m 20s | |
| 14m 26s | |
| 14m 13s | |
| 16m 1s | |
| 18m 36s | |
| 18m 27s | |
| 17m 19s | |
| 20m 25s | |
| 18m 43s | |
| 19m 19s | |
| 17m 30s | |
| 20m 48s | |
| 11m 11s | |
| 11m 12s | |
| 10m 52s | |
| 11m 52s | |
| 8h 0m 18s |