I noticed some definitions in wgMetaNamespaceTalk in InitialiseSettings.php are redundant with NS_PROJECT_TALK from MessagesXxx.php. See atjwiki as an example.
- wgMetaNamespace: Wikipetcia
- wgMetaNamespaceTalk: Ke_ici_aimihitonaniwok_Wikipetcia
- NS_PROJECT_TALK: Ke_ici_aimihitonaniwok_$1
I think we should remove those redundant definitions.