Add ra_machine:snapshot_installed/4 callback to pass old state
#1034
| Job | Run time |
|---|---|
| 12m 0s | |
| 12m 0s | |
| 6m 32s | |
| 6m 32s | |
| 6m 16s | |
| 6m 16s | |
| 7m 47s | |
| 5m 12s | |
| 1h 2m 35s |