Manual:$wgBug34832TransitionalRollback/ja

Some new features / bug fixes in 1.19 are incompatible with some existing on-wiki interface message configuration. This setting restores the original behavior in 1.19 and 1.20. The setting has been removed with 1.21 and the new code is always used (because this setting is considered a temporary transitional hack).

議論は bug 34832 を参照してください.