(ITS#4570) slapo-chain does not return an error when chasing a referral fails

[michail.bachmann@cms.hu-berlin.de]

Full_Name: Michail Bachmann
Version: 2.3.23
OS: Linux
URL: 
Submission from: (NULL) (141.20.3.158)



When the chain overlay encounters an error while chasing a referral it will
return the chased referral to the client instead of the occured error.

The following log snippet shows the behaviour:

May 30 16:02:17 ldapmaster1 slapd-slave-only[31996]: send_ldap_result: conn=0
op=1 p=3
May 30 16:02:17 ldapmaster1 slapd-slave-only[31996]: send_ldap_result: err=50
matched="" text=""
May 30 16:02:17 ldapmaster1 slapd-slave-only[31996]: send_ldap_result: conn=0
op=1 p=3
May 30 16:02:17 ldapmaster1 slapd-slave-only[31996]: send_ldap_result: err=10
matched="" text=""
May 30 16:02:17 ldapmaster1 slapd-slave-only[31996]: send_ldap_result:
referral="ldaps://ldap.internal/ou=testZweig"