[389-users] replication between 1.2.2 and 1.2.6.1

[Robert Viduya]

Can we expect replication between 1.2.2 and 1.2.6.1 to work?  I'm trying to set up MMR between two servers running the two different versions and the 1.2.6.1 master is failing with the following message in it's errors log:

[14/Oct/2010:16:26:19 -0400] NSMMReplicationPlugin - agmt="cn=people moulin stefan" (stefan:636): Unable to parse the response to the startReplication extended operation. Replication is aborting.
[14/Oct/2010:16:26:19 -0400] NSMMReplicationPlugin - agmt="cn=people moulin stefan" (stefan:636): Incremental update failed and requires administrator action

The corresponding messages in the 1.2.2 master's access file show:

[14/Oct/2010:16:26:19 -0400] conn=139 fd=65 slot=65 SSL connection from 130.207.183.16 to 130.207.183.14
[14/Oct/2010:16:26:19 -0400] conn=139 op=0 BIND dn="cn=Replication Manager,cn=config" method=128 version=3
[14/Oct/2010:16:26:19 -0400] conn=139 op=0 RESULT err=0 tag=97 nentries=0 etime=0 dn="cn=replication manager,cn=config"
[14/Oct/2010:16:26:19 -0400] conn=139 op=1 SRCH base="" scope=0 filter="(objectClass=*)" attrs="supportedControl supportedExtension"
[14/Oct/2010:16:26:19 -0400] conn=139 op=1 RESULT err=0 tag=101 nentries=1 etime=0
[14/Oct/2010:16:26:19 -0400] conn=139 op=2 SRCH base="" scope=0 filter="(objectClass=*)" attrs="supportedControl supportedExtension"
[14/Oct/2010:16:26:19 -0400] conn=139 op=2 RESULT err=0 tag=101 nentries=1 etime=0
[14/Oct/2010:16:26:19 -0400] conn=139 op=3 SRCH base="" scope=0 filter="(objectClass=*)" attrs="supportedControl supportedExtension"
[14/Oct/2010:16:26:19 -0400] conn=139 op=3 RESULT err=0 tag=101 nentries=1 etime=0
[14/Oct/2010:16:26:19 -0400] conn=139 op=4 EXT oid="2.16.840.1.113730.3.5.12"
[14/Oct/2010:16:26:19 -0400] conn=139 op=4 RESULT err=2 tag=120 nentries=0 etime=0
[14/Oct/2010:16:27:19 -0400] conn=139 op=5 UNBIND
[14/Oct/2010:16:27:19 -0400] conn=139 op=5 fd=65 closed - U1

I looked up oid 2.16.840.1.113730.3.5.12 and it's apparently new for hooking plugins into the replication process.  I just skimmed the 1.2.6.1 source code and it appears that there's logic to detect if the remote server supports it.  Is that the intent and it's bugged or is replication between the two version just not supposed to work?