Ticket #20452: 20452-issue-5.diff

wp-admin/css/wp-admin.dev.css

@@ -5303 +5303 @@
         border-right: 1px solid rgba( 0, 0, 0, 0.2 );
 }
 
+.wp-full-overlay.collapsed .wp-full-overlay-sidebar {
+        overflow: visible;
+}
+
 .wp-full-overlay-main {
         position: fixed;
         left: 300px;