[MNT] Fix race condition in OpenMLSplit._from_arff_file (#1656)
#3257
| Job | Run time |
|---|---|
| 2m 8s | |
| 2m 8s |
OpenMLSplit._from_arff_file (#1656)
#3257
| Job | Run time |
|---|---|
| 2m 8s | |
| 2m 8s |