Hi guys.

One of IPA masters somehow got itself into trouble:

[25/Nov/2020:10:42:51.918481532 +0000] - ERR - slapi_entry_schema_check_ext - Entry "cn=schema" single-valued attribute "nsSchemaCSN" has multiple values [25/Nov/2020:10:42:51.924870263 +0000] - ERR - setup_internal_backends - Please edit the file to correct the reported problems and then restart the server.

It would be nice to know how such a case can occur but most important question is - how to fix it? Any suggestions I'll greatly appreciate. many thanks, L.