Fix Textarea autosize calculation in special case

framework/source/class/qx/ui/form/TextArea.js

@@ -43,6 +43,7 @@ qx.Class.define("qx.ui.form.TextArea",
     this.initWrap();
 
     this.addListener("roll", this._onRoll, this);
+    this.addListener("resize", this._onResize, this);
   },
 
 
@@ -150,6 +151,21 @@ qx.Class.define("qx.ui.form.TextArea",
         e.stop();
       }
     },
+
+
+    /**
+     * When the element resizes we throw away the clone and trigger autosize again, otherwise the clone would have
+     * another width and the autosize calculation would be faulty.
+     * 
+     * @param e {qx.event.type.Data} resize event.
+     */
+    _onResize : function(e) {
+      if (this.__areaClone) {
+        this.__areaClone.dispose();
+        this.__areaClone = null;
+        this.__autoSize();
+      }
+    },
 
     /*
     ---------------------------------------------------------------------------