Don't trigger filter_map_identity with an iterator from an empty array
#291
| Job | Run time |
|---|---|
| 4m 19s | |
| 1s | |
| 4m 20s |
filter_map_identity with an iterator from an empty array
#291
| Job | Run time |
|---|---|
| 4m 19s | |
| 1s | |
| 4m 20s |