Comment 2 for bug 586032

I remember that I got a similar bug but I was unable to reproduce.
I investigated and I am now able to do.
This bug is vicious and occurs in the undo feature.

To follow the changes in the component reference, open the netlist file in a text editor.

In eeschema, ref is R1, in netlist file, ref is R1
In eeschema, change ref R1 to R2, create netlist, in netlist file, ref is R2
In eeschema, change ref R2 to R3, create netlist, in netlist file, ref is R3
In eeschema, change ref R3 to R4, create netlist, in netlist file, ref is R4
In eeschema, change ref R4 to R5, create netlist, in netlist file, ref is R5
In eeschema, undo action (Ctrl+Z), create netlist: eeshema display R4, in netlist file, ref is R5
In eeschema, undo action (Ctrl+Z), create netlist: eeshema display R3, in netlist file, ref is R5
Previous behaviour is the same with or without saving schematic file.
Save the file, quit eeschema, run eeschema, ref is R3, create netlist, in netlist file, ref is R3.