I am migrating from single provider to N-Way provider in OpenLDAP 2.4.56

This configuration was setup years ago and reading the docs has me questioning this piece of configuration. I notice we have no present configured on our syncprov overlay for our primary DB setup for delta sync. I noticed in the docs it explains

" The nonpresent option should only be configured if the overlay is being placed on top of a log database, such as when used with delta-syncrepl.

The nonpresent option is configured by the

syncprov-nopresent <TRUE|FALSE> directive. This value should only be set TRUE for a syncprov instance on top of a log database (such as one managed by the accesslog overlay). The default is FALSE. "

dn: olcDatabase={2}mdb,cn=config changetype: modify replace: olcDbCheckpoint olcDbCheckpoint: 1024 10 - replace: olcDbIndex ... indexes ... - replace: olcDbMaxSize olcDbMaxSize: 5000000000 - replace: olcDbNosync olcDbNosync: TRUE

dn: olcOverlay=syncprov,olcDatabase={2}mdb,cn=config changetype: add objectClass: olcOverlayConfig objectClass: olcSyncProvConfig olcOverlay: syncprov olcSpNoPresent: TRUE

Should this olcSpNoPresent piece be removed from our configuration? What adverse affects would this generate if it is in fact an incorrect piece of configuration? Delta-Sync between our consumers and provider seem to function. I am worried this could cause problems on my journey to N-Way provider replication.

Next, I am testing new architecture for N-Way but see that the new context CSNs generated by those new providers also show up in the initial provider. If I want to "go back" to my original system state before my N-Way testing, can I simply delete the ContextCSNs from an exported LDIF and reload the database? Or is that asking for trouble?