I can verify that nss-pam-ldapd 0.8.4ubuntu.02 fixes the problem.
Verification procedure:
1. Added precise-proposed repository
2. apt-get install -t precise-proposed nslcd libnss-ldapd
3. verify the contents of /etc/nslcd.conf -> unchanged
4. log in to the system with ldap account -> still works
I can verify that nss-pam-ldapd 0.8.4ubuntu.02 fixes the problem.
Verification procedure:
1. Added precise-proposed repository
2. apt-get install -t precise-proposed nslcd libnss-ldapd
3. verify the contents of /etc/nslcd.conf -> unchanged
4. log in to the system with ldap account -> still works