We do this so that we don’t accidentally modify shadow tiddlers when we
drag them to reorder them within their tag parent. Otherwise, moving a
toolbar button like $:/core/ui/Buttons/permaview in the control panel
will override the shadow tiddler.
Action widget designed to apply filters to the current list and save the modified list back to the list. The widget is able to manipulate lists in any field or any data index of the target tiddler, and includes an option to manipulate the tags of the target tiddler. The widget is used in conjunction with the extended list operator filters (xlistops.js)
