On Wed, May 20, 2015 at 06:40:36PM +0000, hyc@symas.com wrote:

Unable to reproduce.

It does if you use an initial LDIF like the one from ITS#7016:

$ mkdir cf.d $ slapadd -Fcf.d -n0 dn: cn=config objectClass: olcGlobal

dn: olcDatabase=frontend,cn=config objectClass: olcDatabaseConfig objectClass: olcFrontendConfig

^D $ slapcat -Fcf.d -n0 -l cf.ldif $ rm -r cf.d/* $ slapadd -Fcf.d -n0 -l cf.ldif slapadd: dn="olcDatabase={-1}frontend,cn=config" (line=591): (64) value of single-valued naming attribute 'olcDatabase' conflicts with value present in entry _#################### 100.00% eta none elapsed none fast! Closing DB...

(I ran into this myself a while back but forgot to report it.)