Product Version: NetBeans IDE Dev (Build 20071012110141)
Java: 1.6.0_03-ea; Java HotSpot(TM) Client VM 1.6.0_03-ea-b01
System: Windows XP version 5.1 running on x86; Cp1250; cs_CZ (nb)

Undo is performed wrongly when instant rename is active after convert anonymous to inner. 

Steps to reproduce:
1) have a class:
public class NewClass1 {
    
    Runnable r = new Runnable() {

        public void run() {
            throw new UnsupportedOperationException("Not supported yet.");
        }
    };
    
    

}

2) invoke Convert Anonymous to Inner
-> Inner class is introduced, instant rename of its name is active
3) press ctrl-Z
-> code is reverted but instant rename is still active
4) move caret one line down and start typing
-> word "Runnable" is inserted in the text