(ITS#6469) push replication entryCSN of database suffix out of sync

[ralf@OpenLDAP.org]

Full_Name: Ralf Haferkamp
Version: RE24, HEAD
OS: 
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (89.166.208.247)
Submitted by: ralf


When using push-based replication (syncrepl-proxy) the entryCSN of the
consumer's server's suffix entry (the one that also holds the contextCSN
Attribute) is not in sync with the value on the provider. (Other operational
Attributes are out of sync as well)

This is because the MOD Operation to update the contextCSN (sent by the
provider) does not contain any other operational Attributes. That causes the
consumer to add those attributes itself.

I guess the problem is mostly cosmetic, but I'll submit a fix anyway. (not
calling slap_mods_opattrs() if the updatedn modifies "contextCSN")