|Page watchers inactive for more than this many seconds are considered inactive. Used mainly by action=info.
|引进版本：||1.26.0 (Gerrit change 193838; git #I10d294a)|
|默认值：||180 * 24 * 3600 （180天=约六个月）|
|其他设置： 按首字母排序 | 按功能排序|
Counts the number of active watchers of the page that are displayed in action=info if
$wgShowUpdatedMarker is enabled.
Per "active watcher" it counts watchers that have visited that page since the last edit or that have visited the page at least
$wgWatchersMaxAge before last edit (as tracked by the