(ITS#8737) LMDB allows creation of multiple databases in same directory

[aleksey.kamensky@gmail.com]

Full_Name: Alexey Kamenskiy
Version: 2.4.45
OS: CentOS Linux release 7.3.1611 (Core)
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (220.248.35.50)


Setting up fresh 2.4.45 with MDB noticed that MDB does allow to create multiple
databases in the same directory (noticed by mistake of creating multiple MDBs in
default /var/lib/ldap).

It shows no error and no any warning. After this ALL of the databases are
writeable and readable. On reading the results returned for all 3 databases (and
not for the DIT specified in ldapsearch -b).