add relprop for atom selection and corresponding UT
#6497
| Job | Run time |
|---|---|
| 4m 20s | |
| 8m 36s | |
| 22m 30s | |
| 22m 3s | |
| 32m 4s | |
| 13m 24s | |
| 49m 32s | |
| 8m 59s | |
| 14m 4s | |
| 2m 42s | |
| 2h 58m 14s |