"nameservers?name" query cannot find a nameserver by ldhName

[TheRedTrainer]

When an user executes a query searching nameservers by name, if the query parameter is a ldhname, the rdap server doesn't bring any results. For example the following rdap query:

http://localhost:8080/rdap-server/nameservers?name=ns1.xn--foo21-pm4d.org

doesn't return any results (despite the fact that there is a valid ns with that name in BD) and it logs the following db query:

SELECT DISTINCT(nse.nse_id), nse.nse_handle,nse.nse_ldh_name, nse.nse_port43, nse.nse_unicode_name FROM rdap.nameserver nse WHERE nse.nse_ldh_name='ns1.fooア21.org' OR nse.nse_unicode_name='ns1.fooア21.org' ORDER BY 1 LIMIT 6;

[TheRedTrainer]

Verified. All the inputs used in nameservers and domains searchs are validated and parsed to unicode strings, in order to match the unique domain/nameserver name column in db (domain.dom_unicode_name, nameserver.nse_unicode_name)