Ah, the field was trying to hide it self. That's actually a valid usecase, but it kept triggering its own change event causing it to try and hide over and over. Have added a bug ticket to fix this. Should work fine for profile view and userlist view usecases, but try to avoid for profile edit, registration, and userlist search cases (select the locations by expanding the locations section).
forge.joomlapolis.com/issues/7011