db1068 will replace current s4 master as part of: T162133
It needs to be recloned.
It is running Debian Jessie 8.4 and 10.0.23
I would reclone it from one of the large servers to be sure replication doesn't break.
If we are going to reclone it from the large servers, I would strongly recommend db1081 (10.0.23 same as db1068) as it has been migrated to file per table (T161088) and the others are still not running file per table.