Apache HTTPD mod_authnz_ldap error User is not unique (search found two or more matches)

Issue

User cannot login using LDAP credentials. Apache HTTPD shows error about User is not unique.

[Mon Nov 07 21:24:55.009427 2016] [authnz_ldap:info] [pid 4587] [client 10.10.111.007:15476] AH01695: auth_ldap authenticate: user jdoe authentication failed; URI /application/test [User is not unique (search found two or more matches)][No such object], referer: http://example.com/
[Mon Nov 07 21:24:55.009451 2016] [auth_basic:error] [pid 4587] [client 10.10.111.200:15476] AH01618: user jdoe not found: /application/test, referer: http://example.com/