flux-exec: fix credits list update race #10100
| Job | Run time |
|---|---|
| 10s | |
| 7s | |
| 6s | |
| 31s | |
| 1s | |
| 7s | |
| 1s | |
| 1s | |
| 1m 32s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1m 16s | |
| 1s | |
| 1s | |
| 1s | |
| 4m 7s |
| Job | Run time |
|---|---|
| 10s | |
| 7s | |
| 6s | |
| 31s | |
| 1s | |
| 7s | |
| 1s | |
| 1s | |
| 1m 32s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1s | |
| 1m 16s | |
| 1s | |
| 1s | |
| 1s | |
| 4m 7s |