[TEST] Fixed test failure because of "/" in `document_type` of namespaced model
[TEST] Fixed test failure because of "/" in `document_type` of namespaced model

TODO: This is related to patch in #189, and actually means namespaced models cannot be used with Tire.

alphagov/tire,fcheung/tire,tklee/tire_shiphawk,dbose/retire,brijeshgpt7/retire,ChapterMedia/tire,elbuo8/retire,fairfaxmedia/tire,fabn/retire,mavenlink/retire,iamrahulroy/retire,1776/tire,rubydubee/retire,zaharpecherin/retire,Telmate/tire,karmi/retire,HenleyChiu/tire,doximity/tire,mikepb/tire