Search shows the same messages and doesn't go back

What steps will reproduce the problem?
1. Open Hotot
2. Go into the "search" tab and enter a word to search
3. Scroll down until the end of the page, it will load older tweets, but they 
are the same as the last ones before the loading

What is the expected output? 

It should load older tweets

What do you see instead?

Same tweets as before loading the older tweets

What version of the product are you using? 

0.9.7 (Ada)

On what operating system and
what Desktop Environment?

Ubuntu 10.04 with kernel 2.6.35-30-generic and GNOME 2.30.2

Please provide any additional information below.

I don't know if that means that there aren't any other available tweets to 
load, so the program keeps loading the oldest available ones...

Original issue reported on code.google.com by gabriele...@gmail.com on 6 Oct 2011 at 8:46

google-code-export / hotot

Search shows the same messages and doesn't go back #448