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?
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