Ticket #29338: 29338.patch

src/wp-admin/js/editor-expand.js

@@ -223 +223 @@
                 }
 
                 function mceHide() {
-                        var wrapHeight = $( '#wpwrap' ).height();
+                        var top =  $contentWrap.offset().top;
 
-                        textEditorResize();
-
-                        if ( wrapHeight && $window.scrollTop() > wrapHeight ) {
-                                window.scrollTo( window.pageXOffset, wrapHeight - 1 );
+                        if ( $window.scrollTop() > top ) {
+                                window.scrollTo( window.pageXOffset, $contentWrap.offset().top - heights.adminBarHeight );
                         }
 
+                        textEditorResize();
                         adjust();
                 }