The meaning of "putting back" and "bringing forward" a group's expiration time is unclear: it's not clear which one is supposed to mean "prolong" and which one "shorten", as also indicated by the fact that existing translations are opposite from one another. Please either use clearer wording or clarify the meaning in the documentation.
URL: https://translatewiki.net/wiki/MediaWiki:Userrights-groups-help/ia