a item can be both recurring payable and payable

[GoogleCodeExporter]

What steps will reproduce the problem?
1.Installation of PloneGetPaid
2.go the action menus, just choose make recurring payable
3. and change your mind, press go back in your browser without filling the form
4. in the action menu choose make payable
5. fill the form

Now you have 2 portlets 1 payable 1 recurring payable
You will be billed for this product every 1 month(s), for a total of 3 months

What version of the product are you using? PloneGetPaid >0.10.1dev
On what version of Plone? 4.0b5
How did you install it (tarball vs buildout vs...)? buildout 4.0b3.cfg
pdated for the new beta version of Plone

Please provide any additional information below.

Original issue reported on code.google.com by danielle...@gmail.com on 16 Jul 2010 at 5:52