isearch screws display

[Mats Järgenstedt]

>> I have a file with tab separated values and when I use C-s C-w, the
>> numbers tend to move a few spaces to the left, screwing upp what I
>> see. The file is not corrupted, only the dislplay, so C-l works.
>
>Could you please post a small fragment from that file, so that we
>could reproduce this?
>

The smallest fragment that reproduced it comes at the end.  I wanted
my file to appear truncated at the right fringe, so I splitted the
window with C-x 3 and enlarged the left window until I only saw one of
the fringes of the right window. (I understand there is a better way,
but I do not know how).

The bug:
when I typed C-s 2 1 4 5 C-q 2 1 4 5

and then pressed forward arrow, the 2146 at the end of the string
became 22146. I'm sorry, but I cannot reproduce it once I have closed
and reopened emacs. Maybe it was because of the silly way to use the
window-split.

2148    2147    2152    2151    2147    2150    2148    2152    2152    2152    
2152    2149    2158    2154    2154    2152    2152    2148    2151    2145    
2146    2145    2145    2146