In line edits=> not shown correctly

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create A file with the content=  TEST
2. open it in snaketail
3. Change the content to TEST1
4. Change the content to TEST2
5. Change the content to TEST23   

What is the expected output? What do you see instead?

Expected:  

TEST23

Actual:    

TEST
1
3


What version of the product are you using? On what operating system?


Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 22 Dec 2014 at 2:47

[GoogleCodeExporter]

Version:  1.9.0.0 (4.0.30319.18444)  Windows 7 x64

Original comment by [email protected] on 22 Dec 2014 at 2:48

[snakefoot]

Duplicate of #11 (Explains the faulty behavior)