Uninitialized string offset: 0 (function diff_cleanupSemanticLossless)

[GoogleCodeExporter]

Sometimes, an error message appears "uninitialized string offset: 0" generated 
from line 800 "while (isset ($ equality2 [0]) && $ edit [0] === $ equality2 
[0])" in "diff_cleanupSemanticLossless". I do not know why, sometimes it works, 
sometimes not. Can you help me?

What steps will reproduce the problem?
I dont know, sometimes it appears, sometimes not...


What version of the product are you using? On what operating system?
Version from Nov 2012, windows 8, wamp server (localhost)

Original issue reported on code.google.com by [email protected] on 2 Mar 2014 at 10:03