Base: Slow search in form

Hello everybody

We have installed libreoffice 3.5.2 in an ubuntu 10.10 with java 1.6.30 
environment. We are in a production model with about 200 users.

We have seen that if you do a search over a form in base, the speed of 
the search in the form goes very slow in the second search once you have 
reached the last register of the table.

We have a Base with HSQL. Once the search reachs the last register of 
the table and it has no results. In the next search, the speed of the 
search goes very slow. We must close the form, reopen it and do the 
search, in this case, the speed of the search is normal.

The search is over one field.