Clearing the Sketcher

Hi everybody,

Today I noticed a little problem with my molecule sketcher: when I right click the panel and then click clear sketch it clears the picture of the molecule, but when later on I submit my page to get the results I get them as if the molecule was not erased!

So I guess I probably have to update a parameter somewhere, but I don't know how to update the molecule on this clear event.

Thanks for your help

Florent