fn; jumps to top of document

What steps will reproduce the problem?
1. Open a text file with more than one line
2. Move the cursor to a line with more than one 'n' character
3. push fn;

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

The cursor should be at the second 'n' character. Instead, the screen blinks 
and the cursor jumps to the top of the document.

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

I'm using vim 7.3.709 on Arch Linux

Please provide any additional information below.

Issue appears first with 7.3.704

Original issue reported on code.google.com by j.kenton...@googlemail.com on 22 Oct 2012 at 2:56

jeromejj / vim

fn; jumps to top of document #88