Ticket #16972: 16972.4.diff

src/wp-admin/js/postbox.js

@@ -12 +12 @@
                                 id = p.attr( 'id' ),
                                 ariaExpandedValue;
 
-                        if ( 'dashboard_browser_nag' === id ) {
+                        if ( 'dashboard_browser_nag' === id || $( this ).parent().hasClass( 'was-sorted' ) ) {
                                 return;
                         }
 
@@ -109 +109 @@
                                 distance: 2,
                                 tolerance: 'pointer',
                                 forcePlaceholderSize: true,
-                                helper: 'clone',
                                 opacity: 0.65,
+                                start: function (e,ui) { 
+                                        $( ui.item[0] ).addClass( 'was-sorted' ); 
+                                },
                                 stop: function() {
                                         var $el = $( this );
 
@@ -119 +121 @@
                                                 return;
                                         }
 
+                                        setTimeout( function() { 
+                                                $( ui.item[0] ).removeClass( 'was-sorted' ); 
+                                        }, 50 );
+
                                         postboxes.save_order(page);
                                 },
                                 receive: function(e,ui) {