In Special:ManageWikiPermissions on Weather Wiki, for some reason, both the $wgAddGroups and the $wgRemoveGroups checkboxes are listed twice - meaning that each group has a duplicate checkbox. @Paladox said on IRC that a task should be filed for @John.
Kind of high priority since its affecting the functionality of MWP (I don’t dare touch the checkboxes while this issue exists).
{F847535}