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diff --git a/vendor/oojs/oojs-ui/src/layouts/FieldsetLayout.js b/vendor/oojs/oojs-ui/src/layouts/FieldsetLayout.js
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+/**
+ * FieldsetLayouts are composed of one or more {@link OO.ui.FieldLayout FieldLayouts},
+ * which each contain an individual widget and, optionally, a label. Each Fieldset can be
+ * configured with a label as well. For more information and examples,
+ * please see the [OOjs UI documentation on MediaWiki][1].
+ *
+ *     @example
+ *     // Example of a fieldset layout
+ *     var input1 = new OO.ui.TextInputWidget( {
+ *         placeholder: 'A text input field'
+ *     } );
+ *
+ *     var input2 = new OO.ui.TextInputWidget( {
+ *         placeholder: 'A text input field'
+ *     } );
+ *
+ *     var fieldset = new OO.ui.FieldsetLayout( {
+ *         label: 'Example of a fieldset layout'
+ *     } );
+ *
+ *     fieldset.addItems( [
+ *         new OO.ui.FieldLayout( input1, {
+ *             label: 'Field One'
+ *         } ),
+ *         new OO.ui.FieldLayout( input2, {
+ *             label: 'Field Two'
+ *         } )
+ *     ] );
+ *     $( 'body' ).append( fieldset.$element );
+ *
+ * [1]: https://www.mediawiki.org/wiki/OOjs_UI/Layouts/Fields_and_Fieldsets
+ *
+ * @class
+ * @extends OO.ui.Layout
+ * @mixins OO.ui.IconElement
+ * @mixins OO.ui.LabelElement
+ * @mixins OO.ui.GroupElement
+ *
+ * @constructor
+ * @param {Object} [config] Configuration options
+ * @cfg {OO.ui.FieldLayout[]} [items] An array of fields to add to the fieldset. See OO.ui.FieldLayout for more information about fields.
+ */
+OO.ui.FieldsetLayout = function OoUiFieldsetLayout( config ) {
+	// Configuration initialization
+	config = config || {};
+
+	// Parent constructor
+	OO.ui.FieldsetLayout.super.call( this, config );
+
+	// Mixin constructors
+	OO.ui.IconElement.call( this, config );
+	OO.ui.LabelElement.call( this, config );
+	OO.ui.GroupElement.call( this, config );
+
+	if ( config.help ) {
+		this.popupButtonWidget = new OO.ui.PopupButtonWidget( {
+			classes: [ 'oo-ui-fieldsetLayout-help' ],
+			framed: false,
+			icon: 'info'
+		} );
+
+		this.popupButtonWidget.getPopup().$body.append(
+			$( '<div>' )
+				.text( config.help )
+				.addClass( 'oo-ui-fieldsetLayout-help-content' )
+		);
+		this.$help = this.popupButtonWidget.$element;
+	} else {
+		this.$help = $( [] );
+	}
+
+	// Initialization
+	this.$element
+		.addClass( 'oo-ui-fieldsetLayout' )
+		.prepend( this.$help, this.$icon, this.$label, this.$group );
+	if ( Array.isArray( config.items ) ) {
+		this.addItems( config.items );
+	}
+};
+
+/* Setup */
+
+OO.inheritClass( OO.ui.FieldsetLayout, OO.ui.Layout );
+OO.mixinClass( OO.ui.FieldsetLayout, OO.ui.IconElement );
+OO.mixinClass( OO.ui.FieldsetLayout, OO.ui.LabelElement );
+OO.mixinClass( OO.ui.FieldsetLayout, OO.ui.GroupElement );