fail to add an entry on 2.1.12 (works for 2.0.11)

hi,

i have my own schema,

on slapd.conf, with schemacheck on and an updatedn line

i fail to add an entry:

dn: cn=root
entryPath: root
notificationStamp: 0
objectClass: psContainer
cn: root

the definitions of the objectclass as apear in the schema:

objectclass ( 1.3.6.1.4.1.12528.2.1 NAME 'pstop' SUP top STRUCTURAL
MUST ( cn $ notificationStamp $ entryPath )
MAY ( description $ uniqueID ) )

objectclass ( 1.3.6.1.4.1.12528.2.2 NAME 'pscontainer' SUP pstop STRUCTURAL )

while trying to add this entry i face the error:

entry failed schema check: no structuralObjectClass operational attribute (80)

when commenting the updatedn line, all works well

when writing schemacheck off all works well

needless to say, in 2.0.11 it worked fine

please help

thanks in advance

eli