diff --git a/demo/demo.js b/demo/demo.js
index 4a59a8f7..d1bac476 100644
--- a/demo/demo.js
+++ b/demo/demo.js
@@ -365,14 +365,10 @@ exports.launch = function(env) {
         env.editor.getSession().setUseSoftTabs(checked);
     });
 
-    var secondSplitSession = null;
     bindDropdown("split", function(value) {
         var sp = env.split;
         if (value == "none") {
-            if (sp.getSplits() == 2) {
-                secondSplitSession = sp.getEditor(1).session;
-                sp.setSplits(1);
-            }
+            sp.setSplits(1);
         } else {
             var newEditor = (sp.getSplits() == 1);
             if (value == "below") {
@@ -383,7 +379,7 @@ exports.launch = function(env) {
             sp.setSplits(2);
 
             if (newEditor) {
-                var session = secondSplitSession || sp.getEditor(0).session;
+                var session = sp.getEditor(0).session;
                 var newSession = sp.setSession(session, 1);
                 newSession.name = session.name;
             }
diff --git a/lib/ace/split.js b/lib/ace/split.js
index fcbe2a14..07fa0000 100644
--- a/lib/ace/split.js
+++ b/lib/ace/split.js
@@ -96,6 +96,11 @@ var Split = function(container, theme, splits) {
         if (splits == this.$splits) {
             return;
         } else if (splits > this.$splits) {
+            while (this.$splits < this.$editors.length && this.$splits < splits) {
+                var editor = this.$editors[this.$splits];
+                this.$container.appendChild(editor.container);
+                this.$splits ++;
+            }
             while (this.$splits < splits) {
                 this.$createEditor();
                 this.$splits ++;
@@ -103,9 +108,7 @@ var Split = function(container, theme, splits) {
         } else {
             while (this.$splits > splits) {
                 editor = this.$editors[this.$splits - 1];
-                editor.destroy();
                 this.$container.removeChild(editor.container);
-                this.$editors.pop();
                 this.$splits --;
             }
         }