Yes, there is: add the "don't use copy" control to the read request. If
your client has write, then read requirements, using the chain overlay
to avoid dealing with referrals is definitely a bad idea.
Ah... "don't use copy" is slapd 2.4. I forgot to say I'm on 2.3 - for now.
Anyway... I thought that was the whole point of slapo-chain - to get
automatic referral chasing.