[BugFix] RewardSum transform for multiple reward keys
#7695
| Job | Run time |
|---|---|
| 2m 29s | |
| 2m 36s | |
| 2m 0s | |
| 2m 48s | |
| 2m 40s | |
| 1m 43s | |
| 4m 28s | |
| 2m 2s | |
| 1m 59s | |
| 3m 43s | |
| 2m 13s | |
| 4m 17s | |
| 1m 36s | |
| 1m 35s | |
| 1m 34s | |
| 1m 38s | |
| 1m 29s | |
| 1m 29s | |
| 1m 13s | |
| 1m 30s | |
| 1s | |
| 45m 3s |