User:Solumeiras/Interwiki sandbox

• fr:w:Utilisateur:Solumeiras
• fr:b:Utilisateur:Solumeiras
• de:q:Benutzer:Solumeiras
• de:n:User:Solumeiras
• en:n:User:Solumeiras

From the above experiment, interwiki links display as (whatever the project link): http://en.wikipedia.org/wiki/PROJECT PREFIX

e.g.: http://en.wikipedia.org/wiki/fr:q:Utilisateur:Solumeiras

Why does the interwiki do it this way??