Save a variant w/o overriding main description

Every time I save a variant - even without altering a single field - the joomla editor seems to add some tags (mainly <p></p>) into the description field, thus overriding the main description. For that variant, I then get a blank description on the frontend.
Do you know of any way to prohibit joomla from doing so? (I'm on joomla 1.5.26 with TinyMCE as my default editor)

It must come from your editor.
Try to change the editor in the "Editor" option of the configuration of HikaShop in order to avoid that.

You're right, it is an editor issue. When I choose "Editor - No Editor", it works. Of course, I only get a HTML source editor, then.
I'll see if I can teach TinyMCE to respect empty HTML...

Thanks for your help!