"Next result" in find dialog for same file doesn't work

What steps will reproduce the problem?
1. Use the find dialog to look for a string that occurs more than once in a 
file.
2. Press "Find" to highlight the first result.
3. Press "Find" again.

What is the expected output? What do you see instead?
The next result in the same file should be highlighted.  Instead, nothing 
appears to happen.  This also happens with the "Replace next" button.

What version of the product are you using? On what operating system?
Sigil 0.5.2 on Ubuntu 11.04, 64 bit

Original issue reported on code.google.com by alexande...@gmail.com on 22 Feb 2012 at 8:26

Merged into: #1258

Rainie3535 / sigil

"Next result" in find dialog for same file doesn't work #1282